As a genus,
Dadoxylon was poorly defined, and apart from Araucariaceae, has been associated with fossil wood as diverse as
Cordaitales,
Glossopteridales and
Podocarpaceae. Furthermore, it may be the same form genus as
Araucarioxylon, hence the usage
Dadoxylon (
Araucarioxylon). The genus
Agathoxylon, classified under the
family Araucariaceae, has nomenclatural priority over the genera
Araucarioxylon and
Dadoxylon. Several
Dadoxylon species, such as
D. brandlingii and
D. saxonicum have been identified as
Araucarites.
D. arberi and
D. sp.1 were synonymised with the
glossopterid species
Australoxylon teixterae and
A. natalense, respectively; while
D. sp. 2 was transferred to
Protophyllocladoxylon.
Species •
Agathoxylon arizonicum [=
Araucarioxylon arizonicum]
Chinle Formation, Arizona, New Mexico, United States Late Triassic •
Agathoxylon africanum (Bamford 1999) [=
Araucarioxylon africanum]:
Daptocephalus Assemblage Zone,
Middleton Formation and
Normandien Formation to
Cynognathus Assemblage Zone,
Burgersdorp Formation and
Driekoppen Formation,
Beaufort Group,
South Africa, and
Lebung Group,
Botswana •
Agathoxylon agathioides (Kräusel & Jain):
La Matilde Formation,
Argentina •
Agathoxylon antarcticus (Poole & Cantrill 2001) Pujana
et al. 2014 [=
A. matildense,
Araucarioxylon antarcticus]:
Santa Marta Formation and
La Meseta Formation,
Antarctica •
Agathoxylon arberi (Seward 1919) [=
Dadoxylon arberi] •
Agathoxylon australe[=
Dadoxylon australe] •
Agathoxylon bougheyi Williams [=
Dadoxylon bougheyi]:
Madumabisa Mudstone Formation,
Zambia and
Somabula Beds,
Zimbabwe •
Agathoxylon cordaianum Hartig 1848 •
Agathoxylon desnoyersii (Phillipe 2011) [=
Araucarioxylon desnoyersii] •
Agathoxylon duplicatum (Vogellehner 1965) [=
Dadoxylon duplicatum]:
Germany •
Agathoxylon jamudhiense (Maheshwari 1963) [=
Dadoxylon jamudhiense]:
India •
Agathoxylon karooensis (Bamford 1999) [=
Araucarioxylon karooensis]:
Daptocephalus AZ, Middleton and Normandien Formations, South Africa •
Agathoxylon kellerense (Lucas and Lacey 1984) [=
Araucarioxylon kellerense,
Dadoxylon kellerense]: Santa Marta Formation, Antarctica •
Agathoxylon lemonii Tidwell & Thayn 1986:
Dakota Formation,
Utah •
Agathoxylon maharashtraensis (Prasad 1982) [=
Dadoxylon maharashtraensis]: India •
Agathoxylon parenchymatosum (Vogellehner 1965) [=
Araucarioxylon parenchymatosum,
Dadoxylon parenchymatosum]:
Forest Sandstone Formation,
Botswana •
Agathoxylon pseudoparenchymatosum (Gothan 1908) Pujana
et al. 2014 [=
Araucarioxylon chilense,
A. kerguelense,
A. novaezeelandii,
A. pseudoparenchymatosum,
Dadoxylon kaiparaense,
D. kergulense,
D. pseudoparenchymatosum]: Santa Marta Formation, Antarctica •
Agathoxylon santacruzense Kloster and Gnaedinger 2018: La Matilde Formation, Argentina •
Agathoxylon santalense (Sah & Jain): La Matilde Formation, Argentina •
Agathoxylon sclerosum (Walton) Kräusel 1956 [=
Dadoxylon sclerosum,
Kaokoxylon sclerosum]:
Malay Peninsula,
Dwyka Group to
Molteno Formation,
Stormberg Group, South Africa, and
Ntawere Formation,
Zambia •
Agathoxylon termieri (Attims) Gnaedinger & Herbst: La Matilde Formation, Argentina •
Agathoxylon ulmitus Iamandei & Iamandei 2004:
Romania •
Agathoxylon woodworthii (Knowlton 1899) [=
Dadoxylon woodworthii]:
United States ==Distribution==