TEXAS

ARCHER COUNTY

BRIER CREEK BONE BED

UPPER ADMIRAL FORMATION

WICHITA GROUP

LEONARDIAN SERIES

UPPER ROTILEGENDES EPOCH

EARLY PERMIAN

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: AMPHIBIA LINNAEUS, 1758

SUBCLASS: LABYRINTHODONTIA OWEN, 1860

Incertae sedis

Gen. sp indet.

NEOTETRAPODA

SUBCLASS: REPTILIOMORPHA SAVE-SODERBERGH, 1934

ORDER: ANTHRACOSAURIA WATSON, 1917

SUBORDER: ANTHRACOSAURIA SAVE-SODERBRGH, 1934

Family: CRICOTIDAE Cope, 1884

Archeria crassidiscus
= *Archeria robinsoni
Archeria sp
= Cricotus sp

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TEXAS

ARCHER COUNTY

“ELM CREEK”

? LOWER TO MIDDLE WAGGONER RANCH FORMATION (FORMERLY CLYDE FORMATION, UPPER WICHITA GROUP)

UPPER WICHITA GROUP

LAND-VERTEBRATE FAUNACHRON LOWER TO MIDDLE C

LOWER LEONARDIAN STAGE

UPPER 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: OPHIACHODONTIA NOVA

Family: OPHIACODONTIDAE Nopsca, 1923

Ophiacodon major

INFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925

Family: SPHENACODONTIDAE Marsh, 1878

Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)

Tribe: DIMETERODONTINI Nopcsa, 1925

Dimetrodon dollovianus
= Embolophorus dollovianus

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TEXAS

NW ARCHER COUNTY

PETROLIA FORMATION (FORMERLY BELLE PLAINS FORMATION, MIDDLE WICHITA GROUP)

LOWER WICHITA GROUP

LAND-VERTEBRATE FAUNACHRON UPPER B

UPPER WOLFCAMPANIAN STAGE

UPPER ROTLIEGENDES EPOCH

EARLY PERMIAN

OR LOWER LOWER TO MIDDLE WAGGONER RANCH FORMATION (FORMERLY CLYDE FORMATION, UPPER WICHITA GROUP)

UPPER WICHITA GROUP

LAND-VERTEBRATE FAUNACHRON LOWER TO MIDDLE C

LOWER LEONARDIAN STAGE

UPPER 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 cruciger
= Dimetrodon cruciger
= Naosaurus cruciger

TEXAS

NW ARCHER COUNTY

RATTLESNAKE CANYON

NOCONA FORMATION

LATEST WOLFCAMPAIN SERIES

SAKMARIAN STAGE

WICHITA GROUP

LEONARDIAN SERIES

UPPER LOWER TO LOWER MIDDLE ROTILEGENDES 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: OPHIACHODONTIA NOVA

Family: OPHIACODONTIDAE Nopsca, 1923

Ophiacodon uniformis
= Theropleura uniformis
= Poliosaurus uniformis
Ophiacodon retroversus
= Theropleura retroversus

INFRAORDER: EDAPHOSAURA NOVA

Family: EDAPHOSAURIDAE Cope, 1882

Edaphosaurus boanerges

INFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925

Family: SPHENACODONTIDAE Marsh, 1878

Subfamily: SECODONTOSAURINAE Romer & Price, 1940

Secodontosaurus obtusidens
= Theropleura obtusidens
= Dimetrodon obtusidens

Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)

Gen. sp indet.

Tribe: DIMETERODONTINI Nopcsa, 1925

Dimetrodon limbatus
Dimetrodon natalis
= Clepsydrops natalis
Dimetrodon booneorum

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TEXAS

ARCHER COUNTY

RATTLESNAKE CANYON BONEBED 2

NOCONA FORMATION

LATEST WOLFCAMPAIN SERIES

SAKMARIAN STAGE

WICHITA GROUP

LEONARDIAN SERIES

UPPER LOWER TO LOWER MIDDLE ROTILEGENDES 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: ERYOPOIDEA Cope, 1882 (sensu Save-Soderbrergh, 1935)

Family: ERYOPIDAE Cope 1882

Eryops megacephalus

Superfamily: ZATRACHEIDEA Cope, 1882

Family: ZATRACHYDIDAE Cope, 1882

Zatrachys serratus
= Aspidosaurus serratus

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

NEOTETRAPODA

SUBCLASS: REPTILIOMORPHA SAVE-SODERBERGH, 1934

ORDER: ANTHRACOSAURIA WATSON, 1917

SUBORDER: ANTHRACOSAURIA SAVE-SODERBRGH, 1934

Family: CRICOTIDAE Cope, 1884

Archeria crassidiscus

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: SYNAPSIDA OSBORN, 1903

ORDER: PELYCOSAURIA COPE, 1878

SUBORDER: EUPELYCOSAURIA KEMP, 1982

INFRAORDER: EDAPHOSAURA NOVA

Family: EDAPHOSAURIDAE Cope, 1882

Edaphosaurus boanerges

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TEXAS

ARCHER COUNTY

MITCHELL CREEK

LOWER TO MIDDLE WAGGONER RANCH FORMATION (FORMERLY CLYDE FORMATION, UPPER WICHITA GROUP)

UPPER WICHITA GROUP

LAND-VERTEBRATE FAUNACHRON LOWER TO MIDDLE C

LOWER LEONARDIAN STAGE

UPPER 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: DISSOROPHIDAE Boulenger, 1902

*Broiliellus texensis

SUBCLASS: LEPOSPONDYLI ZITTEL, 1888

ORDER: MICROSAURIA DAWSON, 1863

SUBORDER: TUDITANOMORPHA CARROLL & GASKILLL, 1978

Family: PANTYLIDAE Case, 1911

Pantylus cordatus

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: SYNAPSIDA OSBORN, 1903

ORDER: PELYCOSAURIA COPE, 1878

SUBORDER: EUPELYCOSAURIA KEMP, 1982

INFRAORDER: EDAPHOSAURA NOVA

Family: EDAPHOSAURIDAE Cope, 1882

Edaphosaurus boanerges

INFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925

Family: SPHENACODONTIDAE Marsh, 1878

Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)

Tribe: DIMETERODONTINI Nopcsa, 1925

Dimetrodon limbatus
= Clepsydrops limbatus

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TEXAS

ARCHER COUNTY

‘PRIDEAUX POCKET’

?PUEBLO FORMATION

LOWER WICHTIA GROUP

WICHITA GROUP

LEONARDIAN SERIES

UPPER ROTILEGENDES 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: EOGYRINIDAE Watson, 1926

Neopteroplax? relictus

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TEXAS

ARCHER COUNTY

RATTLESNAKE CANYON

NOCONA FORMATION

LATEST WOLFCAMPAIN SERIES

SAKMARIAN STAGE

WICHITA GROUP

LEONARDIAN SERIES

UPPER LOWER TO LOWER MIDDLE ROTILEGENDES 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: DISSOROPHIDAE Boulenger, 1902

Gen. sp indet.

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TEXAS

ARCHER COUNTY

RATTLESNAKE CANYON

NOCONA FORMATION

LATEST WOLFCAMPAIN SERIES

SAKMARIAN STAGE

WICHITA GROUP

LEONARDIAN SERIES

UPPER LOWER TO LOWER MIDDLE ROTILEGENDES EPOCH

EARLY PERMIAN

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: PARAREPTILIA OLSON 1947

INFRACLASS: SAUROPSIDA HUXLEY, 1864

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)

*Protocaptorhinus pricei

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