OKLAHOMA

TILMAN COUNTY

10 MILES SOUTH AND A LITTLE EAST OF SNYDER

SOUTH SNYDER SITE

CLEAR FORK FORMATION

CLEAR FORK GROUP

ARTINSKIAN STAGE

LOWER ROTLIEGENDES EPOCH

EARLY PERMIAN

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: AMPHIBIA LINNAEUS, 1758

SUBCLASS: LABYRINTHODONTIA OWEN, 1860

SUPERORDER: TEMNOSPONDYLIA ZITTEL, 1887

MICROORDER: EUSKELIA YATES & WARREN, 2000

ORDER: EYROPODIA

Superfamily: DISSOROPHOIDEA Boulenger, 1902 (sensu Bolt, 1969)

Family: TREMATOPIDAE Williston, 1910

Acheloma cumminsi
= Trematops milleri
*Acheloma thomasi
= Trematops thomasi