WASHINGTON COUNTY
ROADCUT ON OHIO ROUTE 7
CRESTON SHALE
WASHINGTON FORMATION
DUNKARD GROUP
WOLFCAMPANIAN STAGE
UPPER LOWER TO LOWER MIDDLE 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 stonei
= Trematops stonei
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OHIO
WASHINGTON COUNTY
BELPRE
WASHINGTON FORMATION
DUNKARD GROUP
WOLFCAMPANIAN STAGE
UPPER LOWER TO LOWER MIDDLE ROTLIEGENDES EPOCH
EARLY PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LABYRINTHODONTIA OWEN, 1860
SUPERORDER: TEMNOSPONDYLIA ZITTEL, 1887
ORDER: RHACHITOMI COPE, 1882
PARVORDER: EDOPIFORMES
SUBORDER: EDOPSOIDEA ROMER, 1947
Superfamily: EDOPOIDEA Romer, 1945 (sensu Romer, 1966)
Family: EDOPIDAE Romer, 1945
Edops sp
MICROORDER: LIMNARCHIA YATES & WARREN, 2000
ORDER: DVINOSAURIA YATES & WARREN, 2000
INFRAORDER: TRIMERORHACHOIDA ROMER, 1947
Superfamily: TRIMERORHACHOIDEA Cope, 1882 (sensu Romer, 1947)
Family: TRIMERORHACHIDAE Cope, 1882
Trimerorhachis sp
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OHIO
WASHINGTON COUNTY
JUSTE SOUTH OF BELPRE
UPPER MARIETTA SANDSTONE
WASHINGTON FORMATION
DUNKARD GROUP
WOLFCAMPANIAN STAGE
UPPER LOWER TO LOWER MIDDLE ROTLIEGENDES EPOCH
EARLY PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: SYNAPSIDA OSBORN, 1903
ORDER: PELYCOSAURIA COPE, 1878
SUBORDER: EUPELYCOSAURIA KEMP, 1982
INFRAORDER: EDAPHOSAURA NOVA
Family: EDAPHOSAURIDAE Cope, 1882
Edaphosaurus sp
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