Cnidaria A number of
Cnidarians are known from Mazon Creek, and show the diversity of taxa in the ecosystem.
Annelida A number of
annelid worms are known from Mazon Creek.
Echinodermata Echinoderms are an undiverse faunal component of Mazon Creek.'''
Arachnida A large number of
arachnids are known from Mazon Creek, with some belonging to extinct groups, while others represent some of the earliest appearances of
crown-group lineages.
Mandibulata A very large number of arthropods belonging to the
mandibulata are known from Mazon Creek.
Myriapoda The
myriapoda (
centipedes,
millipedes, and their close relatives) are known in moderately large numbers in Mazon Creek
Non-Hexapod Pancrustacea A number of 'traditional' crustaceans are known from Mazon creek, with the majority belonging to extant groups.
Hexapoda Members of the
hexapoda (insects and their relatives) constitute the most diverse group of animals known from Mazon Creek
Cyclostomi Members of
Cyclostomi (
hagfish and
lampreys) are known from Mazon Creek.
Chondrichthyes A number of chondrichthyes (cartilaginous fish) are known from Mazon Creek, including a number of
elasmobranchs and
holocephalans.
Acanthodii Some members of the
acanthodii are known from Mazon Creek.
Actinopterygii A large number of early actinopterygians are known from Mazon Creek, notably the
Palaeonisciformes.
Non-Tetrapod Sarcopterygii Several groups of non-tetrapod sarcopterygians, including basal
coelacanths and
lungfish are known from the site.
Tetrapods Many exceptionally well-preserved tetrapods are known from Mazon Creek, mostly
temnospondyls and assorted "
microsaurs"
Miscellaneous Taxa This section documents faunal taxa whose taxonomic affinities are not fully understood, or do not fit into any of the above groups.
Ichnotaxa This section covers various
ichnotaxa, or trace fossils, traces in the fossil record left behind by living organisms. == Further reading ==