OKLAHOMA

COTTON COUNTY

NEAR DEEP RED RUN

NOCONA FORMATION (FORMERLY LOWER TO LOWER UPPER ADMIRAL FORMATION, MIDDLE WICHITA GROUP)

LOWER WICHITA GROUP

LAND-VERTEBRATE FAUNACHRON LOWER B

UPPER WOLFCAMPANIAN STAGE

UPPER ROTLIEGENDES EPOCH

EARLY PERMIAN

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: AMPHIBIA LINNAEUS, 1758

NEOTETRAPODA

SUBCLASS: REPTILIOMORPHA SAVE-SODERBERGH, 1934

ORDER: ANTHRACOSAURIA WATSON, 1917

SUBORDER: ANTHRACOSAURIA SAVE-SODERBRGH, 1934

Family: CRICOTIDAE Cope, 1884

*Archeria crassidiscus
= Cricotus crassidiscus
= Archeria crassidisca

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