OKLAHOMA
TILLMAN COUNTY
NORTHEAST FREDERICK SITE
OMNH V 173
GARBER SANDSTONE
UPPER PART OF THE SUMNER GROUP
POSSIBLY EQUIVALENT TO THE LOWER ARROYO FORMATION
LOWER CLEAR FORK GROUP
LAND-VERTEBRATE FAUNACHRON LOWER D
MIDDLE LEONARDIAN STAGE
UPPER ROTLIEGENDES
EARLY PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LABYRINTHODONTIA OWEN, 1860
SUPERORDER: TEMNOSPONDYLIA ZITTEL, 1887
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 insignis
MICROORDER: EUSKELIA YATES & WARREN, 2000
ORDER: EYROPODIA
Superfamily: ERYOPOIDEA Cope, 1882 (sensu Save-Soderbrergh, 1935)
Family: ERYOPIDAE Cope 1882
Eryops megacephalus
Superfamily: DISSOROPHOIDEA Boulenger, 1902 (sensu Bolt, 1969)
Family: TREMATOPIDAE Williston, 1910
Acheloma sp
NEOTETRAPODA
SUBCLASS: REPTILIOMORPHA SAVE-SODERBERGH, 1934
ORDER: ANTHRACOSAURIA WATSON, 1917
SUBORDER: ANTHRACOSAURIA SAVE-SODERBRGH, 1934
Family: CRICOTIDAE Cope, 1884
Archeria sp
SUBCLASS: LEPOSPONDYLI ZITTEL, 1888
ORDER: NECTRIDEA MIALL, 1875
Family: DIPLOCAULIDAE Cope, 1881
Diplocaulus sp
ORDER: MICROSAURIA DAWSON, 1863
SUBORDER: TUDITANOMORPHA CARROLL & GASKILLL, 1978
Family: GYMNARTHRIDAE Case, 1910
Cardiocephalus sternbergi
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: PARAREPTILIA OLSON 1947
INFRACLASS: SAUROPSIDA HUXLEY, 1864
SUBORDER: DIADECTOMORPHA Watson, 1917
ORDER: CAPTORHINOMORPHA WATSON, 1917
SUBORDER: CAPTORHINOMORPHA WATSON, 1917
Family: CAPTORHINIDAE Case, 1911
Subfamily: CAPTORHININAE Case, 1911 (sensu De Ricqles, et AL 1982)
Captorhinus aguti
Eocaptorhinus sp
SUBCLASS: SYNAPSIDA OSBORN, 1903
ORDER: PELYCOSAURIA COPE, 1878
SUBORDER: EUPELYCOSAURIA KEMP, 1982
INFRAORDER: OPHIACHODONTIA NOVA
Family: OPHIACODONTIDAE Nopsca, 1923
Ophiacodon retroversus
INFRAORDER: EDAPHOSAURA NOVA
Family: EDAPHOSAURIDAE Cope, 1882
Edaphosaurus pogonias
INFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925
Family: SPHENACODONTIDAE Marsh, 1878
Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)
Tribe: DIMETERODONTINI Nopcsa, 1925
Dimetrodon limbatus
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OKLAHOMA
TILLMAN COUNTY
LAKE FREDERICK SITE
OMNH V 247
GARBER SANDSTONE
UPPER PART OF THE SUMNER GROUP
POSSIBLY EQUIVALENT TO THE LOWER ARROYO FORMATION
LOWER CLEAR FORK GROUP
LAND-VERTEBRATE FAUNACHRON LOWER D
MIDDLE LEONARDIAN STAGE
UPPER ROTLIEGENDES
EARLY PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LABYRINTHODONTIA OWEN, 1860
SUPERORDER: TEMNOSPONDYLIA ZITTEL, 1887
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 insignis
MICROORDER: EUSKELIA YATES & WARREN, 2000
ORDER: EYROPODIA
Superfamily: ERYOPOIDEA Cope, 1882 (sensu Save-Soderbrergh, 1935)
Family: ERYOPIDAE Cope 1882
Eryops megacephalusSuperfamily: DISSOROPHOIDEA Boulenger, 1902 (sensu Bolt, 1969)
Family: TREMATOPIDAE Williston, 1910
Acheloma sp
NEOTETRAPODA
SUBCLASS: REPTILIOMORPHA SAVE-SODERBERGH, 1934
ORDER: ANTHRACOSAURIA WATSON, 1917
SUBORDER: ANTHRACOSAURIA SAVE-SODERBRGH, 1934
Family: CRICOTIDAE Cope, 1884
Archeria sp
SUBCLASS: LEPOSPONDYLI ZITTEL, 1888
ORDER: NECTRIDEA MIALL, 1875
Family: DIPLOCAULIDAE Cope, 1881
Diplocaulus sp
ORDER: MICROSAURIA DAWSON, 1863
SUBORDER: TUDITANOMORPHA CARROLL & GASKILLL, 1978
Family: GYMNARTHRIDAE Case, 1910
Cardiocephalus sternbergi
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: PARAREPTILIA OLSON 1947
INFRACLASS: SAUROPSIDA HUXLEY, 1864
ORDER: COTYLOSAURIA COPE, 1880
SUBORDER: DIADECTOMORPHA Watson, 1917
Family: DIADECTIDAE Cope, 1880
Diadectes sp
SUPERORDER: EUREPTILIA OLSON, 1947
ORDER: CAPTORHINOMORPHA WATSON, 1917
SUBORDER: CAPTORHINOMORPHA WATSON, 1917
Family: CAPTORHINIDAE Case, 1911
Subfamily: CAPTORHININAE Case, 1911 (sensu De Ricqles, et AL 1982)
Captorhinus aguti
SUBCLASS: SYNAPSIDA OSBORN, 1903
ORDER: PELYCOSAURIA COPE, 1878
SUBORDER: EUPELYCOSAURIA KEMP, 1982
INFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925
Family: SPHENACODONTIDAE Marsh, 1878
Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)
Tribe: DIMETERODONTINI Nopcsa, 1925
Dimetrodon limbatus
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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
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OKLAHOMA
SOUTHERN TILLMAN COUNTY
SOUTH GRANDFIELD
HENNESSEY FORMATION, (ARROYO EQUIVALENT)
LOW CLEAR FORK GROUP
LEONARDIAN STAGE
LOWER ROTLIEGENDES EPOCH
EARLY PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LEPOSPONDYLI ZITTEL, 1888
ORDER: NECTRIDEA MIALL, 1875
Family: DIPLOCAULIDAE Cope, 1881
Diplocaulus primus
= Peronedon primusORDER: MICROSAURIA DAWSON, 1863
SUBORDER: TUDITANOMORPHA CARROLL & GASKILLL, 1978
Family: GYMNARTHRIDAE Case, 1910
Cardiocephalus peabodyi
= Cardiocephalus cf. sternbergiFamily: OSTODOLEPIDAE Romer, 1945
*Micraroter erythrogeios
ORDER: LYSOROPHIA WILLISTON, 1908
Family: COCYTINIDAE Cope, 1875
Incertae sedis
Lysorophus cf. tricarinatus
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OKLAHOMA
TILMAN COUNTY
6 1/2 M SW OF GRANDFIELD
HENNESSEY FORMATION, (ARROYO EQUIVALENT)
LOW CLEAR FORK GROUP
LEONARDIAN 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: AMPHIBAMIDAE Moodie, 1910
Tersomius cf. texensis
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 cf. insignis
SUBCLASS: LEPOSPONDYLI ZITTEL, 1888
ORDER: MICROSAURIA DAWSON, 1863
SUBORDER: TUDITANOMORPHA CARROLL & GASKILLL, 1978
Family: HAPSIDOPAREIONTIDAE Daly, 1973
*Hapsidopareion lepton
Family: GYMNARTHRIDAE Case, 1910
*Euryodus dalyae
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OKLAHOMA
TILMMAN COUNTY
5 OR 6 M SW OF THE TOWN OF GRANFIELD
HENNESSEY FORMATION, (ARROYO EQUIVALENT)
LOW CLEAR FORK GROUP
LEONARDIAN STAGE
LOWER ROTLIEGENDES EPOCH
EARLY PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: PARAREPTILIA OLSON 1947
INFRACLASS: SAUROPSIDA HUXLEY, 1864
ORDER: LANTHANOSUCHIDAE TATARINOV, 1971
Family: ACLEISTORHINIDAE Daly, 1969
*Acleistorhinus pteroticus
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OKLAHOMA
TILMAN COUNTY
WEST GRANDFIELD SITE
EARLY PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LABYRINTHODONTIA OWEN, 1860
SUPERORDER: TEMNOSPONDYLIA ZITTEL, 1887
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
SUBCLASS: LEPOSPONDYLI ZITTEL, 1888
ORDER: NECTRIDEA MIALL, 1875
Family: DIPLOCAULIDAE Cope, 1881
Diplocaulus magnicornis
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: SYNAPSIDA OSBORN, 1903
ORDER: PELYCOSAURIA COPE, 1878
SUBORDER: EUPELYCOSAURIA KEMP, 1982
INFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925
Family: SPHENACODONTIDAE Marsh, 1878
Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)
Tribe: DIMETERODONTINI Nopcsa, 1925
Dimetrodon gigashomogenes
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OKLAHOMA
TILLMAN COUNTY
EAST MANITOU SITE
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: ERYOPOIDEA Cope, 1882 (sensu Save-Soderbrergh, 1935)
Family: ERYOPIDAE Cope 1882
Eryops sp
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: SYNAPSIDA OSBORN, 1903
ORDER: PELYCOSAURIA COPE, 1878
SUBORDER: EUPELYCOSAURIA KEMP, 1982
INFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925
Family: SPHENACODONTIDAE Marsh, 1878
Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)
Tribe: DIMETERODONTINI Nopcsa, 1925
Dimetrodon sp
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