New dinosaur taxa General non-avian dinosaur research • A study aiming to identify the most likely area for the geographic origin of dinosaurs is published by Lee
et al. (2019). • A study evaluating the impact of new fossil discoveries and changing phylogenetic hypotheses on
biogeographical scenarios for dinosaur origins is published by Marsola
et al. (2019). • A study aiming to determine the degree of differences of dinosaur phylogenies inferred from skull and postcranial characters is published online by Li, Ruta & Wills (2019). • A study on the
chronostratigraphic position of the uppermost Cretaceous dinosaur localities from south-western Europe, and on their implications for inferring the course of the
Maastrichtian dinosaur turnover, is published by Fondevilla
et al. (2019). • A study aiming to quantify the habitat of latest Cretaceous North American dinosaurs, based on data from fossil occurrences and climatic and environmental modelling, and evaluating its implications for inferring whether dinosaur diversity was in decline prior to the
Cretaceous–Paleogene extinction event, is published by Chiarenza
et al. (2019). • A study on factors determining the community richness of large herbivorous dinosaurs from the
Campanian Dinosaur Park Formation (
Alberta,
Canada) is published by Mallon (2019). • A review of the fossil record of Late Cretaceous non-avian dinosaurs from the James Ross Basin (
Antarctica) is published by
Lamanna et al. (2019), who also describe fragmentary new
ankylosaur and
ornithopod material from the Cape Lamb Member of the
Snow Hill Island Formation and the Sandwich Bluff Member of the
López de Bertodano Formation. • A review and evaluation of studies on molecular data from Mesozoic dinosaur fossils is published by
Schweitzer et al. (2019). • A study on the nature of putative remains of ancient proteins, blood vessels, and cells preserved with dinosaur fossils, based on data from fossils of
Centrosaurus apertus from the
Dinosaur Park Formation (
Alberta,
Canada), is published by Saitta
et al. (2019). • A study on the
olfactory bulb ratio (the size of the olfactory bulb relative to the cerebral hemisphere) in dinosaurs, and on its implication for inferring olfactory acuity of dinosaurs, is published by Hughes & Finarelli (2019). • A study on vascular correlates in dinosaur skulls, evaluating their implications for the knowledge of thermoregulatory strategies of dinosaurs of different sizes, is published online by Porter &
Witmer (2019). • A review of the diversity of the musculature of the skulls of herbivorous dinosaurs is published online by Nabavizadeh (2019). • A study on the evolution of different modes of herbivory in non-avian dinosaurs is published online by Button &
Zanno (2019). • A study on the structure of eggshells of eggs produced by
Lufengosaurus,
Massospondylus and
Mussaurus, representing the oldest confirmed
amniote eggshells reported so far, is published by Stein
et al. (2019). • Description of
dinosaur egg fossils from the late
Early Cretaceous Chaochuan Formation (
Zhejiang,
China) is published by Zhang
et al. (2019), who name a new
ootaxon Multifissoolithus chianensis. • Dinosaurs eggs assigned to the oofamily
Dendroolithidae are described from the
Late Cretaceous Zhaoying Formation (
China) by He
et al. (2019), who name a new ootaxon
Pionoolithus quyuangangensis. • Dinosaurs eggs assigned to the oofamily
Faveoloolithidae are described from the Upper Cretaceous (
Coniacian–
Santonian) siltstones within the Daeri Andesite of the Wido Volcanics (
South Korea) by Kim
et al. (2019), who name a new ootaxon
Propagoolithus widoensis. • Possible
dromaeosaurid eggshells are described from the Upper Cretaceous Wido Volcanics (South Korea) by Choi & Lee (2019), who name a new ootaxon
Reticuloolithus acicularis. • Description of an intact dinosaur egg from the Cretaceous
Wayan Formation (
Idaho,
United States) assigned to the oogenus
Macroelongatoolithus is published by Simon
et al. (2019), who interpret this specimen as evidence of presence of a
Gigantoraptor-sized
oviraptorosaur in western North America. • A study on the embryonic metabolism of
Troodon formosus,
Protoceratops andrewsi and
Hypacrosaurus stebingeri, and on its implications for the knowledge of the incubation times for dinosaur eggs, is published by Lee (2019). • A new dinosaur nesting site, preserving at least 15 egg clutches probably laid by a non-avian theropod dinosaur, is described from the Upper Cretaceous Javkhlant Formation (
Mongolia) by Tanaka
et al. (2019), who interpret the finding as evidence of colonial nesting in a non-avian dinosaur. • A study aiming to determine possible shifts from quadrupedality to bipedality during
ontogeny in dinosaurs is published online by Chapelle
et al. (2019). • A review of evidence of probable responses of dinosaurs to serious injuries is presented by Hearn & Williams (2019). • A study on the phylogenetic placement of
Chilesaurus diegosuarezi and its implications for the phylogenetic relationships of major dinosaur groups is published by Müller & Dias-da-Silva (2019).
Saurischian research Theropod research • A study on specimen completeness in the fossil record of non-avian theropod dinosaurs is published by Cashmore & Butler (2019). • A study on the distribution of discrete dental characters in theropod dinosaurs, and on the taxonomic value of theropod teeth, is published by Hendrickx
et al. (2019). • A study aiming to evaluate whether the maximum body size of theropod dinosaurs increased across the
Triassic-
Jurassic boundary is published online by Griffin &
Nesbitt (2019). • A revision of theropod dinosaur fossils from the Late Jurassic to mid-Cretaceous of Southeast Asia is published by Samathi, Chanthasit & Sander (2019). • Description of theropod dinosaur teeth from the
Lower Cretaceous (
Barremian-
Aptian)
Ilek Formation (West Siberia,
Russia) is published by Averianov, Ivantsov & Skutschas (2019). • A study re-assessing the evidence for evolutionary
allometric trends in the forelimbs of non-avian theropod dinosaurs is published by Palma Liberona
et al. (2019). • Redescription of the
holotype specimen of
Chindesaurus bryansmalli and a study on the phylogenetic relationships of this species is published by Marsh
et al. (2019). • Description of two fragmentary
neotheropod specimens from the
Upper Triassic Bull Canyon Formation (
New Mexico,
United States), and a study on their implications for the knowledge of body size evolution among early theropods, is published by Griffin (2019). • A study on the anatomy of the braincase, the skull
endocast and the inner ear of
Zupaysaurus rougieri is published by Paulina-Carabajal, Ezcurra &
Novas (2019). • A study on range of motion and functions of the forelimbs of
Dilophosaurus wetherilli is published by Senter & Sullivan (2019). • A study on the paleobiology of
Cryolophosaurus is published by Yun (2019). • A study on tooth formation and replacement rates in
Majungasaurus,
Ceratosaurus and
Allosaurus is published by D'Emic
et al. (2019). • A study on the ecology of
Ceratosaurus is published by Yun (2019). • A study on the phylogenetic relationships of
Afromimus tenerensis is published by Cerroni
et al. (2019), who consider this taxon to be more likely an
abelisauroid rather than an
ornithomimosaur. • Description of isolated neck vertebrae of abelisauroid theropods from the Cretaceous
Kem Kem Beds (
Morocco) and a study on the phylogenetic affinities of these fossils is published online by Smyth
et al. (2019). • Partially preserved
ilium of an indeterminate
abelisaur theropod is reported from the
Upper Cretaceous Kem Kem Beds (
Morocco) by Zitouni
et al. (2019); however Smyth
et al. (2019) reinterpret this specimen as a fossil of
Spinosaurus aegyptiacus, • A study on the anatomy of the brain, braincase and inner ear of
Carnotaurus sastrei is published by Cerroni & Paulina-Carabajal (2019). • A study on the phylogenetic affinities of a tooth previously considered to be part of the
holotype of
Aerosteon riocoloradensis is published online by Hendrickx, Tschopp & Ezcurra (2019), who consider this fossil to be an
abelisaurid tooth. •
Megalosaurid teeth resembling teeth of
Torvosaurus are described from the Upper Jurassic of
Uruguay and
Tanzania by Soto, Toriño & Perea (2019). • Isolated
spinosaurid teeth are described from the Lower Cretaceous of Kut Island (
Thailand) by Buffetaut
et al. (2019). • New spinosaurid specimens are described from the Kem Kem Beds (Morocco) by Arden
et al. (2019), who interpret these specimens as providing evidence of aquatic adaptations in the skulls of spinosaurids, and name a new clade
Spinosaurini; the study is subsequently criticized by Hone & Holtz (2019). • New fossil material of juvenile spinosaurids is described from the Kem Kem Beds by Lakin & Longrich (2019). • New theropod fossils, including partial tail vertebra of a member of
Megaraptora and an association of tail vertebrae and pelvic elements displaying a combination of characteristics that are present in megaraptorid and
carcharodontosaurid theropods, are described from the early Late Cretaceous
Griman Creek Formation at
Lightning Ridge, New South Wales (
Australia) by Brougham, Smith & Bell (2019). • Partial postcranial skeleton of a probable
carcharodontosaurian theropod is described from the
Upper Jurassic (
Tithonian)
Freixial Formation (
Portugal) by Malafaia
et al. (2019). • Description of the anatomy of the
axial skeleton of
Concavenator corcovatus is published by Cuesta, Ortega & Sanz (2019). • A study on the anatomy of the brain and inner ear of
Giganotosaurus carolinii is published online by Paulina-Carabajal & Nieto (2019). • A study on the anatomy of
Murusraptor barrosaensis, and on its implications for inferring the phylogenetic placement of
megaraptorans within Theropoda, is published by Rolando,
Novas & Agnolín (2019). • New fossil material of a megaraptorid belonging or related to the species
Australovenator wintonensis is described from the Lower Cretaceous (
Albian) Eric the Red West site (
Eumeralla Formation;
Victoria,
Australia) by Poropat
et al. (2019). • A study comparing different methods of assessing morphological diversity of
coelurosaurian
mandibles is published online by Schaeffer
et al. (2019). • A study on the anatomy of the skull of
Bicentenaria argentina is published online by Aranciaga-Rolando, Cerroni & Novas (2019). • New postcranial bones of
Kileskus aristotocus, providing new information on the anatomy of this species, are described from the Middle Jurassic (
Itat Formation)
Itat Formation (
Russia) by Averianov
et al. (2019). • A study on the agility and turning capability of tyrannosaurids and other large theropods is published by Snively
et al. (2019), who argue that tyrannosaurids could turn with greater agility, thus pivoting more quickly, than other large theropods, which enhanced their ability to pursue and subdue prey. • A study on the taxonomic identity of the tyrannosaurid specimen
CMN 11315 from the lower
Maastrichtian Tolman Member of the
Horseshoe Canyon Formation (
Alberta,
Canada) is published online by Mallon
et al. (2019). • A study on the taxonomic identity of the juvenile tyrannosaurid specimen
TMP 1994.143.1, formerly assigned to the genus
Daspletosaurus, is published by Voris
et al., who reinterpret this specimen as belonging to the species
Gorgosaurus libratus, and describe a new
postorbital from the
Dinosaur Park Formation (
Alberta,
Canada) belonging to a small juvenile
Daspletosaurus. • A study on the tooth replacement patterns in tyrannosaurid theropods, as indicated by data from a juvenile specimen of
Tarbosaurus bataar, is published by Hanai & Tsuihiji (2019). • A study on teeth of
Tarbosaurus bataar and its potential prey species from the
Nemegt Formation (
Mongolia), aiming to infer the diet of this dinosaur and seasonal climatic variations in the area of Mongolia in the early
Maastrichtian on the basis of stable isotope data from
tooth enamel, is published online by Owocki
et al. (2019). • A study on the complexity and modularity of the skull of
Tyrannosaurus rex is published by Werneburg
et al. (2019). • Traces preserved on a tail vertebra of a
hadrosaurid dinosaur from the
Upper Cretaceous Hell Creek Formation (
Montana,
United States) are described by Peterson & Daus (2019), who interpret their finding as feeding traces produced by a late-stage juvenile
Tyrannosaurus rex. • A large specimen of
Tyrannosaurus rex (
RSM P2523.8) with an estimated body mass exceeding other known
T. rex specimens and representatives of all other gigantic terrestrial theropods is described by Persons,
Currie & Erickson (2019). • A study testing the biomechanical performance of the skull of
Tyrannosaurus rex is published online by Cost
et al. (2019). • A study on tooth replacement in a well-preserved skull of
Tyrannosaurus rex from the
Maastrichtian Hell Creek Formation (
Montana,
United States) is published online by Sattler & Schwarz (2019). • A study aiming to determine the processes contributing to the preservation of soft tissue structures and proteins of
Tyrannosaurus rex is published by Boatman
et al. (2019). • Teeth on a (probably non-tyrannosaurid) tyrannosauroid and a dromaeosaurid are described from the
Maastrichtian Mount Laurel Formation (
New Jersey,
United States) by Brownstein (2019). • Description of an
ornithomimid specimen
UALVP 16182, putatively assigned to the genus
Dromiceiomimus, and a study on the validity of this genus is published by Macdonald &
Currie (2019). • A study on the
morphometrics of teeth of
Richardoestesia asiatica from the Upper Cretaceous
Khodzhakul,
Bissekty and Aitym formations of
Uzbekistan is published by Averianov &
Sues (2019). • A study on the bone
histology of a
metatarsal bone of the
holotype specimen of
Xixianykus zhangi is published by Qin, Zhao &
Xu (2019). • A study on the anatomy of the skull of
Beipiaosaurus inexpectus is published by Liao &
Xu (2019). • A study on form, function and evolution of skulls of members of
Oviraptorosauria is published online by Ma
et al. (2019). • A study on the wing performance of
Caudipteryx is published by Talori
et al. (2019). • A study on the
aerodynamic capacity of feathered forelimbs of
Caudipteryx is published by Talori & Zhao (2019). • Description of an
avimimid bonebed assemblage from the
Iren Dabasu Formation of northern China, providing new information on the growth of avimimids, is published by Funston
et al. (2019). • Description of new
caenagnathid mandibles from the
Dinosaur Park Formation (
Alberta,
Canada) and a study on their
histology is published online by Funston
et al. (2019). • A reconstruction of the architecture of the
oviraptorid egg clutch, based on data from five clutches from the Upper Cretaceous Nanxiong Group (
Jiangxi,
China) is presented by Yang
et al. (2019), who re-evaluate the hypothesis of thermoregulatory contact incubation of eggs as an explanation for the discoveries of associations of adult oviraptorosaurs with egg clutches. • A study on the reproductive biology of oviraptorids, based on data from a partial clutch of eggs from the Upper Cretaceous Nanxiong Group, is published online by Yang
et al. (2019). • A study on the function of the enlarged "sickle claw" on the second toe of
dromaeosaurid theropods is published by Bishop (2019). • An
ungual phalanx of a dromaeosaurid theropod is described from the
Blagoveshchensk area (
Russia) by Bolotskii, Bolotskii & Sorokin (2019). • A study on the anatomy,
taphonomy, environmental setting and phylogenetic position of
Halszkaraptor escuilliei is published by Brownstein (2019); the study is subsequently criticized by Cau (2020). • A study on a fossil lizard found in the abdomen of a specimen of
Microraptor zhaoianus from the Lower Cretaceous
Jiufotang Formation (
China), evaluating its implications for the knowledge of dromaeosaurid digestion, is published by O'Connor
et al. (2019). • Description of the anatomy of the skull of
Saurornitholestes langstoni, based on data from an almost complete skeleton from the
Campanian Dinosaur Park Formation (
Alberta,
Canada), is published online by
Currie & Evans (2019). •
Histological analysis of the forelimb bones of
Daliansaurus liaoningensis is presented by Shen
et al. (2019). • Evidence indicating that the
pennaceous feathers of
Anchiornis were composed of both feather
β-keratins and
α-keratins is presented by Pan
et al. (2019); the study is subsequently criticized by Saitta & Vinther (2019). • Isolated theropod teeth, interpreted as most likely representing at least two species, are described from the
Middle Jurassic Valtos Sandstone and
Lealt Shale Formations of
Skye (
Scotland) by Young
et al. (2019).
Sauropodomorph research • A study aiming to explain high diversity of early evolutionary branches of
sauropodomorph dinosaurs is published online by Müller & Garcia (2019). • A study on the anatomy and phylogenetic relationships of
Pampadromaeus barberenai is published by Langer
et al. (2019). • A
dinosauriform femur, possibly of a juvenile specimen of the species
Pampadromaeus barberenai, is described from the
Late Triassic of southern
Brazil by Müller
et al. (2019). • A study on the anatomy of the braincase of
Saturnalia tupiniquim is published by Bronzati, Langer & Rauhut (2019). • Description of all available skull bones of
Saturnalia tupiniquim except the braincase, evaluating the implications of this taxon for the knowledge of the early evolution of the sauropodomorph feeding behaviour, is published by Bronzati, Müller & Langer (2019). • A study on the phylogenetic relationships of
Unaysaurus tolentinoi is published online by McPhee
et al. (2019). • A study on the anatomy of the skull of
Macrocollum itaquii and on the phylogenetic relationships of this species is published online by Müller (2019). • A study on the
bony labyrinth scale and geometry through
ontogeny in
Massospondylus carinatus, evaluating whether the putative gait change from quadrupedal juvenile to bipedal adult is reflected in labyrinth morphology, will be published by Neenan
et al. (2019). • Description of the anatomy of the postcranial skeleton of the
neotype specimen of
Massospondylus carinatus is published by Barrett
et al. (2019). • Redescription of the anatomy of the skull of
Jingshanosaurus xinwaensis is published online by Zhang
et al. (2019), who consider
Chuxiongosaurus lufengensis to be a
junior synonym of
J. xinwaensis. • A study on the anatomy of the
axial skeleton of
Xingxiulong chengi is published online by Wang
et al. (2019). • A study on changes of body mass and
center of mass of
Mussaurus patagonicus during its
ontogeny, and on their potential relationship with the locomotor stance of this dinosaur, is published by Otero
et al. (2019). • A study on the leverage of forelimb muscles in the transition from the narrow-gauge stance of
basal sauropods to a wide-gauge stance in
titanosaurs is published by Klinkhamer
et al. (2019). • A study on the hind foot posture and
biomechanical capabilities of
Rhoetosaurus brownei is published by Jannel
et al. (2019). • A study on the age of the fossils of
Rhoetosaurus brownei is published by Todd
et al. (2019). • An isolated tooth-crown of a member of
Eusauropoda, possibly a member of
Mamenchisauridae or
Euhelopodidae, is described from the
Upper Jurassic Qigu Formation (
China) by Maisch & Matzke (2019), representing the first record of a eusauropod from this formation reported so far. • A
cervical vertebra of a member of the genus
Omeisaurus is described from the
Middle Jurassic Lower Member of the
Shaximiao Formation (
China) by Tan
et al. (2019), providing new information on the skeletal
morphology of this genus, and representing the easternmost occurrence of
Omeisaurus reported so far. • Possible
mamenchisaurid teeth are described from the
Middle Jurassic Itat Formation (
Russia) by Averianov
et al. (2019). • A study on the age of the fossils of members of the genus
Mamenchisaurus from the
Suining Formation in the Sichuan Basin (China) is published by Wang
et al. (2019). • A study on the anatomy and affinities of
Lapparentosaurus madagascariensis is published by Raveloson, Clark & Rasoamiaramana (2019). • Partial vertebra of a sauropod dinosaur belonging to the group
Turiasauria is described from the
Lower Cretaceous Wealden Supergroup (
United Kingdom) by Mannion (2019). • Description and a study on the affinities of sauropod teeth from the
Middle Jurassic (
Bathonian)
Sakahara Formation (
Madagascar) is published online by Bindellini & Dal Sasso (2019), who report evidence of presence of
Titanosauriformes in the Bathonian. • Description of isolated sauropod vertebrae from the
Oxford Clay Formation (
United Kingdom), indicative of a higher sauropod biodiversity in this formation than previously recognised, is published by Holwerda, Evans & Liston (2019). • Revision of the taxonomic diversity of sauropod dinosaurs from a historic
Carnegie Museum locality (Red Fork of the Powder River Quarry B) in northern
Wyoming (
Morrison Formation) is published by Tschopp
et al. (2019). • A study on pneumatic structures in the vertebrae of
Pilmatueia faundezi is published online by Windholz,
Coria & Zurriaguz (2019). • A study on the anatomy of the
appendicular skeleton of
Europasaurus holgeri and on the phylogenetic relationships of this species is published online by Carballido
et al. (2019). • Redescription of
brachiosaurid fossil material from the Upper Jurassic Morrison Formation (
Colorado,
United States), including a mostly complete skull discovered in
1883, is published online by D'Emic & Carrano (2019). • A study on the phylogenetic relationships of
Galvesaurus herreroi is published by Pérez-Pueyo
et al. (2019). • A study on the phylogenetic relationships of the
Late Jurassic sauropod dinosaurs from the
Tendaguru Formation of
Tanzania (
Australodocus bohetii,
Janenschia robusta and
Tendaguria tanzaniensis) is published by Mannion
et al. (2019). • The first confirmed fossil of a sauropod dinosaur from
Ethiopia (an isolated tooth) is reported from the Upper Jurassic
Mugher Mudstone by Goodwin
et al. (2019). • A study on the affinities of the sauropod dinosaur known from an isolated
metacarpal from the Upper Jurassic (
Oxfordian)
Jagua Formation (
Cuba) is published online by Apesteguía, Izquierdo & Iturralde-Vinent (2019). • A study on isolated sauropod teeth from the Early Cretaceous Teete locality (
Batylykh Formation) (
Yakutia,
Russia), representing the northernmost sauropod record in the Northern Hemisphere reported so far, is published online by Averianov
et al. (2019). • Redescription of
Jiangshanosaurus lixianensis, a study on the anatomy of
Dongyangosaurus sinensis and a study on the phylogenetic relationships of these species is published by Mannion
et al. (2019). • New fossil material of
titanosauriform sauropods is described from the Upper Cretaceous
Daijiaping Formation (
Hunan,
China) by Han
et al. (2019). • A study on the long bone
histology in early juvenile titanosaur sauropods, evaluating its implications for the knowledge of early stages of development of these dinosaurs, is published online by González
et al. (2019). • A study on the neurology and phylogenetic affinities of a titanosaurian braincase from the
Campanian locality of Fox-Amphoux-Métisson (southeastern
France) is published by Knoll
et al. (2019). • Tail vertebrae of
lithostrotian titanosaurs are described from the Lower Cretaceous
Ilek Formation (
Krasnoyarsk Krai,
Russia) by Averianov, Ivantsov & Skutschas (2019). • A study on the anatomy of the
appendicular skeleton of South American titanosaur sauropods and on its implications for the knowledge of the phylogenetic relationships of these sauropods is published by
González Riga et al. (2019), who name a new clade
Colossosauria. • Description of titanosaur sauropod vertebrae from the Upper Cretaceous
Lameta Formation (
India) is published by
Wilson et al. (2019). • Description of the anatomy of the braincase of
Malawisaurus dixeyi is published by Andrzejewski
et al. (2019), who present digital reconstructions of the
endocast and
inner ear of this species based on
CT scanning. • A study on the anatomy and phylogenetic relationships of
Uberabatitan ribeiroi is published by Silva
et al. (2019). • A study on vertebral pneumaticity in
Uberabatitan ribeiroi, indicating that
diagenesis can obliterate traces of bone pneumaticity, is published online by Aureliano
et al. (2019). • Fossils of a titanosaur sauropod related to
Rapetosaurus and the indeterminate Italian titanosaur specimen
MSNM V7157 are described from the Algora vertebrate fossil site located in the
Cenomanian strata of the
Arenas de Utrillas Formation (
Spain) by Mocho
et al. (2019). • Description of five articulated sauropod dorsal vertebrae from the Upper Cretaceous
Nemegt Formation, possibly belonging to the species
Nemegtosaurus mongoliensis, is published by Averianov & Lopatin (2019), who also study the anatomy of sauropod
femora from the Nemegt Formation, and argue that
N. mongoliensis is likely to be distinct from
Opisthocoelicaudia skarzynskii.
Ornithischian research • A study on the evolution of the
femoral fourth trochanter in ornithischian dinosaurs is published online by Persons &
Currie (2019). • A study on the
taphonomy and
histology of the ornithischian (ankylosaurian and ornithopod) fossils from the La Cantalera-1 site (
Lower Cretaceous Blesa Formation,
Spain) is published by Perales-Gogenola
et al. (2019).
Thyreophoran research • Studies on the anatomy of the skull and postcranial skeleton of
Scelidosaurus harrisonii are published online by
Norman (2019). • A study on the
holotype specimen of
Bienosaurus lufengensis, and on the taxonomic validity and phylogenetic relationships of this dinosaur, is published by Raven
et al. (2019). • A study on the
morphological diversity of
stegosaurs through the evolutionary history of the group is published by Romano (2019). • Two new stegosaurian specimens from the northernmost outcrops of the
Morrison Formation in
Montana, one of which is the northernmost occurrence of a dinosaur from the Morrison Formation reported so far, are described by Woodruff,
Trexler &
Maidment (2019). • Description of a new specimen of
Miragaia longicollum and a study on the taxonomic validity and phylogenetic relationships of this species is published by Costa &
Mateus (2019), who transfer the species
Alcovasaurus longispinus to the genus
Miragaia. • Plates of an armored dinosaur from the
Lower Jurassic (
Sinemurian-
Pliensbachian) Lower
Kota Formation (
India) are redescribed by
Galton (2019), who considers these fossils to be more similar to plates of
ankylosaurians than
basal thyreophorans, and interprets them as the earliest ankylosaurian fossils reported so far. • Description of an assemblage of 12 partial, articulated or associated ankylosaurian skeletons and thousands of isolated bones and teeth from the Cretaceous (
Santonian) Iharkút vertebrate locality (
Hungary) will be published by Ősi
et al. (2019). • A study on the evolution of morphological traits associated with tail weaponry in ankylosaurs and
glyptodonts, aiming to quantitatively test the hypothesis that tail weaponry of these groups is an example of
convergent evolution, is published online by
Arbour &
Zanno (2019). • Murray, Riguetti & Rozadilla (2019) describe ankylosaur
osteoderms from the Upper Cretaceous (
Campanian-
Maastrichtian)
Allen Formation (
Argentina). • Description of three new skull specimens of
Talarurus plicatospineus from the Upper Cretaceous (
Cenomanian–
Santonian)
Bayan Shireh Formation (
Mongolia), and a study on the phylogenetic relationships of this species, is published online by Park
et al. (2019). • Evidence for
sexual dimorphism in
Tianzhenosaurus youngi is presented by Ma (2019). • A study on the brain morphology and topography of cranial nerves of
Bissektipelta archibaldi is published by Alifanov & Saveliev (2019). • A study on the bone
histology of the
holotype specimen of
Antarctopelta oliveroi and on its implication for the knowledge of paleobiology of this species is published by Cerda
et al. (2019).
Cerapod research • A study on the age of the Kulinda locality (south-eastern
Siberia,
Russia) which yielded fossils of
Kulindadromeus zabaikalicus is published by Cincotta
et al. (2019). • First
photogrammetric models of the type locality burrow of
Oryctodromeus cubicularis are presented by Wilson & Varricchio (2019). • A study on the
taphonomy of fossils of
Oryctodromeus cubicularis is published by Krumenacker
et al. (2019), who also report discovery of new burrows of this dinosaur. • New fossil material of ornithopod dinosaurs is described from the Cretaceous Flat Rocks locality (
Wonthaggi Formation,
Australia) by Herne
et al. (2019), who also revise
Qantassaurus intrepidus and study the phylogenetic relationships of the
Victorian ornithopods. • Description of new fossil material of large ornithopod dinosaurs from the Lower Cretaceous localities in El Castellar (Maestrazgo Basin, Teruel,
Spain), and a study on the implications of these fossils for the knowledge of ornithopod diversity in the Lower Cretaceous of the Iberian Peninsula, is published by Verdú
et al. (2019). • Description of the anatomy of the skeleton of
Talenkauen santacrucensis is published by Rozadilla, Agnolín &
Novas (2019). • A study on the anatomy of the skeleton of
Macrogryphosaurus gondwanicus is published online by Rozadilla, Cruzado-Caballero &
Calvo (2019). • Skeletal pathologies affecting a subadult specimen of
Tenontosaurus tilletti from the
Antlers Formation of southeastern
Oklahoma are described by Hunt
et al. (2019). • A study on the anatomy and phylogenetic relationships of the ornithopod dinosaurs from the
Maastrichtian of
Crimea, including
Riabininohadros weberae, is published by Averianov & Lopatin (2019). • Redescription of the fossil material of
Orthomerus dolloi and a study on the phylogenetic affinities of this taxon is published online by Madzia, Jagt & Mulder (2019). • A study on patterns and processes of morphological evolution of
hadrosauroid dinosaurs is published by Stubbs
et al. (2019). • A study on the nature of the
fluvial systems of
Laramidia during the Late Cretaceous, as indicated by data from vertebrate and invertebrate fossils from the
Kaiparowits Formation of southern
Utah, and on the behavior of
hadrosaurid dinosaurs over these landscapes, will be published by Crystal
et al. (2019). • Evidence of three-dimensional preservation of
eumelanin-bearing bodies, dermal cells and blood vessel fragments in a hadrosaur specimen
YPMPU 016969 is presented by Fabbri
et al. (2019). • A study on the
osteology and phylogenetic relationships of
"Tanius laiyangensis" is published online by Zhang
et al. (2019). • A study on the bone
histology of
tibiae of
Maiasaura peeblesorum, focusing on the composition, frequency and cortical extent of localized vascular changes, is published by Woodward (2019). • A study on hadrosaurine skulls from the
Dinosaur Park Formation (
Alberta,
Canada), aiming to assess the influence of
ontogeny on skull morphology, and evaluating proposed synonymy between
Gryposaurus incurvimanus and
G. notabilis, is published online by Lowi-Merri & Evans (2019). • Three juvenile specimens of
Prosaurolophus maximus, providing new information on the
ontogeny of this taxon, are described from the
Bearpaw Formation (
Alberta,
Canada) by Drysdale
et al. (2019). • A study on the structure and contents of a large piece of amber attached to a jaw of a specimen of
Prosaurolophus maximus from the Cretaceous
Dinosaur Park Formation (
Alberta,
Canada), evaluating the implications of this finding for the knowledge of the habitat and taphonomy of the dinosaur, is published by McKellar
et al. (2019). • A study on the impact of bone tissue structure, early
diagenetic regimes and other
taphonomic variables on the
preservation potential of soft tissues in vertebrate fossils, as indicated by data from fossils of
Edmontosaurus annectens from the Standing Rock Hadrosaur Site (
Maastrichtian Hell Creek Formation,
South Dakota), is published by Ullmann, Pandya & Nellermoe (2019), who report the first recovery of
osteocytes and vessels from a fossil
vertebral centrum and ossified
tendons. • A
femur of an early juvenile hadrosaurid, probably belonging to the species
Edmontosaurus annectens, is described from the Hell Creek Formation (
Montana, United States) by Farke & Yip (2019), providing new information on
ontogenetic changes in the skeleton of this dinosaur. • Skull remains of nestling-sized hadrosaurids, probably belonging to the species
Edmontosaurus annectens, are described from the Hell Creek Formation (Montana, United States) by Wosik, Goodwin & Evans (2019). • A study of three-dimensionally preserved squamous skin of a member of the genus
Edmontosaurus from the Upper Cretaceous (
Campanian)
Wapiti Formation (
Alberta,
Canada) is published by Barbi
et al. (2019). • The first definitive
lambeosaurine fossil (an isolated skull bone) is described from the Liscomb Bonebed of the
Prince Creek Formation (
Alaska,
United States) by Takasaki
et al. (2019). • Fossils of a lambeosaurine related to the Eurasian
Tsintaosaurini are described from the lower
Maastrichtian of the Els Nerets locality (eastern Tremp Syncline, northeastern
Spain) by Conti
et al. (2019). • A study on the microwear of hadrosaur teeth from the La Parrita locality (
Cerro del Pueblo Formation,
Mexico) and on its implications for the knowledge of jaw mechanics and feeding ecology of these hadrosaurs is published by Rivera-Sylva
et al. (2019). • A study on bone
histology of
Psittacosaurus lujiatunensis through its
ontogeny is published by Zhao
et al. (2019). • A study on the morphological changes in the braincase of
Psittacosaurus lujiatunensis through its ontogeny, based on data from three specimens from the Lower Cretaceous
Yixian Formation (
China), is published by Bullar
et al. (2019). • A three-dimensional virtual
endocast of a member of the genus
Auroraceratops is reconstructed on the basis of a well-preserved skull by Zhang
et al. (2019). • Studies on the preservation of fossils of
Auroraceratops rugosus, on their stratigraphic provenance, and on the anatomy and phylogenetic relationships of this species are published by Suarez
et al. (2019), Suarez
et al. (2019), Morschhauser
et al. (2019), Li
et al. (2019), Morschhauser
et al. (2019) and Morschhauser
et al. (2019). • A study on the nature of the observed variation in morphology and size of skulls of
Bagaceratops rozhdestvenskyi is published online by Czepiński (2019), who considers the species
Gobiceratops minutus,
Lamaceratops tereschenkoi,
Platyceratops tatarinovi and
Magnirostris dodsoni to be
junior synonyms of
B. rozhdestvenskyi. • The first postcranial skeleton of
Bagaceratops reported so far is described from the Upper Cretaceous
Barun Goyot Formation (
Mongolia) by Kim, Yun & Lee (2019). • A study on the anatomy of the
appendicular skeleton of
Protoceratops andrewsi and on its implications for the knowledge of the locomotor abilities of this species throughout its ontogeny is published by Słowiak, Tereshchenko & Fostowicz-Frelik (2019). • A study on the bone
histology and skeletal growth of
Avaceratops and
Yehuecauhceratops is published online by Hedrick
et al. (2019). • New information on the anatomy of the skeleton of
Pachyrhinosaurus perotorum is presented by Tykoski,
Fiorillo & Chiba (2019), who also provide a new diagnosis of this species. • A study on the morphological variation of the skulls of specimens of
Styracosaurus albertensis is published online by Holmes
et al. (2019). • A study on the affinities of two
chasmosaurine skulls from the
Dinosaur Park Formation (
Alberta,
Canada), previously referred to the species
Chasmosaurus belli, is published by Campbell
et al. (2019), who transfer the species
Vagaceratops irvinensis to the genus
Chasmosaurus, and consider the two studied skulls to be fossils of members of the genus
Chasmosaurus of uncertain specific assignment, with morphology intermediate between
C. belli and
C. irvinensis. • A study on the
taphonomy of hadrosaurid and ceratopsid fossils from the Scabby Butte locality (
St. Mary River Formation;
Alberta,
Canada) is published online by Campbell, Ryan & Anderson (2019). • A study on the taxonomic status of
Teyuwasu barberenai, in which it was proposed as a second specimen of the
herrerasaurid Staurikosaurus pricei rather than a separate genus and species, is published by Garcia, Müller & Dias-da-Silva (2019). • A study on a putative
sauropodomorph ilium, from
Carnian rocks of the Candelária Sequence/
Santa Maria Formation (
Brazil), aims to discuss muscle attachment scars, in the context of
ontogeny and
phylogeny of
basal dinosauriforms, focusing in
saturnaliine sauropodomorphs is published by Garcia
et al. (2019). ==Birds==