NOBLE COUNTY
LUCIEN SITE 1
WELLINGTON FORMATION (GARBER FORMATION)
SUMMER GROUP
ARBUCKLE LIMESTONE
(PROBABLY EQUIVALENT TO THE ARROYO FORMATION OF TEXAS)
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: ERYOPOIDEA Cope, 1882 (sensu Save-Soderbrergh, 1935)
Family: ERYOPIDAE Cope 1882
Eryops 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 sp
OKLAHOMA
NOBLE COUNTY
LUCINE SITE 3
WELLINGTON FORMATION (GARBER FORMATION)
SUMMER GROUP
ARBUCKLE LIMESTONE
(PROBABLY EQUIVALENT TO THE ARROYO FORMATION OF TEXAS)
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: ERYOPOIDEA Cope, 1882 (sensu Save-Soderbrergh, 1935)
Family: ERYOPIDAE Cope 1882
Eryops 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
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
OKLAHOMA
NOBLE COUNTY
LUCINE SITE 4
WELLINGTON FORMATION (GARBER FORMATION)
SUMMER GROUP
ARBUCKLE LIMESTONE
(PROBABLY EQUIVALENT TO THE ARROYO FORMATION OF TEXAS)
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: ERYOPOIDEA Cope, 1882 (sensu Save-Soderbrergh, 1935)
Family: ERYOPIDAE Cope 1882
Eryops 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
SUBCLASS: LEPOSPONDYLI ZITTEL, 1888
ORDER: NECTRIDEA MIALL, 1875
Family: DIPLOCAULIDAE Cope, 1881
Diplocaulus sp
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
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
OKLAHOMA
NOBLE COUNTY
LUCIEN SITE 5
WELLINGTON FORMATION (GARBER FORMATION)
SUMMER GROUP
ARBUCKLE LIMESTONE
(PROBABLY EQUIVALENT TO THE ARROYO FORMATION OF TEXAS)
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 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
OKLAHOMA
NOBLE COUNTY
2 M NE OF ORLANDO
WELLINGTON FORMATION (GARBER FORMATION)
SUMMER GROUP
ARBUCKLE LIMESTONE
(PROBABLY EQUIVALENT TO THE ARROYO FORMATION OF TEXAS)
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: UROCORDYLIDAE Lydekker, 1889
Subfamily: SAUROPLEURINAE Carroll, 1978
Crossotelus annulatus
= *Cricotillus brachydens
= Trimerorhachis leptorhynchus
OKLAHOMA
NOBLE COUNTY
ORLANDO SITE
WELLINGTON FORMATION (GARBER FORMATION)
SUMMER GROUP
ARBUCKLE LIMESTONE
(PROBABLY EQUIVALENT TO THE ARROYO FORMATION OF TEXAS)
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: ERYOPOIDEA Cope, 1882 (sensu Save-Soderbrergh, 1935)
Family: ERYOPIDAE Cope 1882
Eryops 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
SUBCLASS: LEPOSPONDYLI ZITTEL, 1888
ORDER: NECTRIDEA MIALL, 1875
Family: UROCORDYLIDAE Lydekker, 1889
Subfamily: SAUROPLEURINAE Carroll, 1978
*Crossotelus annulatus
Family: DIPLOCAULIDAE Cope, 1881
Diplocaulus magnicornis
Diplocaulus cf. magnicornisORDER: LYSOROPHIA WILLISTON, 1908
Family: COCYTINIDAE Cope, 1875
Incertae sedis
Lysorophus cf. tricarinatus
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)
Captorhinus aguti
Labidosaurus oklahomensisSUBCLASS: SYNAPSIDA OSBORN, 1903
ORDER: PELYCOSAURIA COPE, 1878
SUBORDER: EUPELYCOSAURIA KEMP, 1982
INFRAORDER: EDAPHOSAURA NOVA
Family: EDAPHOSAURIDAE Cope, 1882
Edaphosaurus sp
INFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925
Family: SPHENACODONTIDAE Marsh, 1878
Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)
Tribe: DIMETERODONTINI Nopcsa, 1925
Dimetrodon sp
OKLAHOMA
NOBLE COUNTY
PERRY
WELLINGTON FORMATION (GARBER FORMATION)
SUMMER GROUP
ARBUCKLE LIMESTONE
(PROBABLY EQUIVALENT TO THE ARROYO FORMATION OF TEXAS)
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: UROCORDYLIDAE Lydekker, 1889
Subfamily: SAUROPLEURINAE Carroll, 1978
Crossotelus annulatus
OKLAHOMA
NOBLE COUNTY
PERRY SITE 1
WELLINGTON FORMATION (GARBER FORMATION)
SUMMER GROUP
ARBUCKLE LIMESTONE
(PROBABLY EQUIVALENT TO THE ARROYO FORMATION OF TEXAS)
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: 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: UROCORDYLIDAE Lydekker, 1889
Subfamily: SAUROPLEURINAE Carroll, 1978
Crossotelus sp
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)
Labidosaurus oklahomensis
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
OKLAHOMA
NOBLE COUNTY
PERRY SITE 3
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
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
OKLAHOMA
NOBEL COUNTY
PERRY SITE 5
MIDDLE WELLINGTON FORMATION (GARBER FORMATION)
SUMMER GROUP
ARBUCKLE LIMESTONE
(PROBABLY EQUIVALENT TO THE ARROYO FORMATION OF TEXAS)
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: LIMNARCHIA YATES & WARREN, 2000
ORDER: DVINOSAURIA YATES & WARREN, 2000
INFRAORDER: TRIMERORHACHOIDA ROMER, 1947
Superfamily: DVINOSAUROIDEA Watson, 1919
Family: Incertae sedis
*Perryella olsoni
OKLAHOMA
NOBLE COUNTY
PERRY SITE 6
WELLINGTON FORMATION (GARBER FORMATION)
SUMMER GROUP
ARBUCKLE LIMESTONE
(PROBABLY EQUIVALENT TO THE ARROYO FORMATION OF TEXAS)
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: 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: OPHIACHODONTIA NOVA
Family: OPHIACODONTIDAE Nopsca, 1923
Ophiacodon uniformis
= Theropleura uniformis
= Poliosaurus uniformisINFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925
Family: SPHENACODONTIDAE Marsh, 1878
Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)
Tribe: DIMETERODONTINI Nopcsa, 1925
Dimetrodon sp
OKLAHOMA
NOBLE COUNTY
KIRBY QUARRY
WELLINGTON FORMATION (GARBER FORMATION)
SUMMER GROUP
ARBUCKLE LIMESTONE
(PROBABLY EQUIVALENT TO THE ARROYO FORMATION OF TEXAS)
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: 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
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
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)
?Captorhinus sp
SUBCLASS: DIAPSIDA OSBORN, 1903
ORDER: ARAEOSCELIDA WILLISTON 1913
Incerate sedis
Dictybolus tener
Gen. sp indet.
SUBCLASS: SYNAPSIDA OSBORN, 1903
ORDER: PELYCOSAURIA COPE, 1878
SUBORDER: EUPELYCOSAURIA KEMP, 1982
INFRAORDER: OPHIACHODONTIA NOVA
Family: OPHIACODONTIDAE Nopsca, 1923
Ophiacodon sp
INFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925
Family: SPHENACODONTIDAE Marsh, 1878
Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)
Tribe: DIMETERODONTINI Nopcsa, 1925
Dimetrodon sp
____________________________________________________________________________________
OKLAHOMA
NOBLE COUNTY
BILLINGS 4 OMNH-V1744
WELLINGTON FORMATION
MIDCO MEMBER
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: ERYOPOIDEA Cope, 1882 (sensu Save-Soderbrergh, 1935)
Family: ERYOPIDAE Cope 1882
Eryops megacephalus
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 sp
SUBCLASS: LEPOSPONDYLI ZITTEL, 1888
ORDER: NECTRIDEA MIALL, 1875
Family: DIPLOCAULIDAE Cope, 1881
Diploceraspis sp
SUBCLASS: SYNAPSIDA OSBORN, 1903
ORDER: PELYCOSAURIA COPE, 1878
SUBORDER: EUPELYCOSAURIA KEMP, 1982
INFRAORDER: EDAPHOSAURA NOVA
Family: EDAPHOSAURIDAE Cope, 1882
Edaphosaurus sp
INFRAORDER: DIMETRODONTOMORPHA emend NOPCSA, 1925
Family: SPHENACODONTIDAE Marsh, 1878
Subfamily: SPHENACODONTINAE Marsh, 1878 (sensu Nopcsa, 1925)
Tribe: DIMETERODONTINI Nopcsa, 1925
Dimetrodon sp