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Sister taxa
Anthracosauria (syn. Anthracosaurida)

Synonymy list
YearName and author
1934Reptiliomorpha Säve-Söderbergh pp. 11, 17-18 fig. 5
2005Reptiliomorpha Haubold et al.
2019Reptiliomorpha Arbez et al.

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EubilateriaAx 1987
phylumChordataHaeckel 1874
subclassDipnotetrapodomorpha(Nelson 2006)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Unr. Reptiliomorpha Säve-Söderbergh 1934
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Unr. Anthracosauria Säve-Söderbergh 1934
Subcl. †Amphibiosauria Kuhn 1967
Invalid names: Batrachosauria Efremov 1946 [replaced]
Subor. †Diplomeri Romer 1964
Invalid names: Diplovertebrontidae [empty]
Unr. †Embolomera Cope 1880
Fm. †Archeriidae Kuhn 1965
G. †Cricotus Cope 1875
Cricotus crassidiscus Cope 1884
Invalid names: Cricotus hypantricus Cope 1886 [synonym]
Cricotus heteroclitus Cope 1875
Invalid names: Cricotus discophorus Cope 1877 [synonym], Cricotus gibsonii Cope 1877 [synonym]
G. †Spondylerpeton Moodie 1912
Invalid names: Spondylerpeton spinatum Moodie 1912 [nomen vanum]
G. †Eoherpeton Panchen 1975
Eoherpeton watsoni Panchen 1975
Subor. †Gephyrostegida
Fm. †Gephyrostegidae Jaekel 1909
G. †Bruktererpeton Boy and Bandel 1973
Bruktererpeton fiebigi Boy and Bandel 1973
G. †Eusauropleura Romer 1930
G. †Gephyrostegus Jaekel 1902
Gephyrostegus bohemicus Jaekel 1902
Gephyrostegus watsoni Brough and Brough 1967
Fm. †Proterogyrinidae Romer 1970
G. †Papposaurus Watson 1914
Papposaurus traquairi Watson 1914
G. †Proterogyrinus Romer 1970
Invalid names: Mauchchunkia bassa Hotton, III 1970 [synonym]
Invalid names: Mauchchunkia Hotton, III 1970 [synonym]
Invalid names: Anthracosaurida [synonym], Gephyrostegoidea [empty], Mauchchunkiidae Hotton, III 1970 [empty], Schizomeri Romer 1964 [empty], Seymouriamorphoidea [empty]
No diagnoses are available
No measurements are available
Composition: phosphaticsubp
Maximum body mass: 100000 kgg
Minimum body mass: 3 gs
Environment: brackish, freshwater, terrestrialuc
Locomotion: actively mobilec
Created: 2017-04-17 15:15:19
Modified: 2017-04-17 15:15:19
Source: s = species, g = genus, c = class, subp = subphylum, uc = unranked clade
References: Legendre 1988, Peczkis 1995, Uhen and Gingerich 1995, Carroll 1988, Vizcaíno et al. 2010, Johnson and Madden 1997, Hendy et al. 2009

Age range

Maximum range based only on fossils: base of the Arnsbergian to the top of the Holocene or 326.40000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 323.2 Ma

Collections (42086 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Mississippian358.9 - 323.2USA (Virginia) Dromopus aduncus (104796)
Tournaisian - Gzhelian358.9 - 298.9United Kingdom (Scotland) Pseudobradypus sp. (27703)
Serpukhovian - Bashkirian330.9 - 315.2Canada (Nova Scotia) Proterogyrinidae indet. (175248)
Arnsbergian326.4 - 318.1USA (West Virginia) Mauchchunkia bassa, Proterogyrinus scheelei (124949)
Pendleian326.4 - 318.1United Kingdom (Scotland) Eoherpeton watsoni (174421)
Pendleian326.4 - 318.1United Kingdom (England) Eoherpeton watsoni, Anthracosauria indet. (22726)
Bashkirian323.2 - 315.2United Kingdom (England) Lysorophus sp. (177139)
Pennsylvanian323.2 - 298.9USA (Massachusetts) Dromopus woodworthi (34780)
Pennsylvanian323.2 - 298.9USA (Wyoming) Steganoposaurus belli (197983)
Marsdenian318.1 - 314.6Germany (Westphalia) Bruktererpeton fiebigi (175907)
Westphalian A318.1 - 314.6Canada (Nova Scotia) Hylerpeton dawsoni, Leiocephalikon eutheton, Amblyodon problematicum, Protoclepsydrops haplous, Hylonomus latidens, Hylonomus wymani, Hylerpeton curtidentatum, Hylonomus lyelli (28069) Leiocephalikon problematicum, Trachystegos megalodon, Asaphestera intermedia, Hylonomus lyelli (86946)
Westphalian A318.1 - 314.6United Kingdom (England) Lysorophus sp. (175174)
Westphalian A - Westphalian B318.1 - 314.6USA (Arizona) Elfridia bulbidens (92271)
Moscovian315.2 - 307.0USA (Illinois) Diabloroter bolti (201784)
Moscovian315.2 - 307.0Canada (Nova Scotia) Dendromaia unamakiensis (207132)
Moscovian315.2 - 307.0Czech Republic Adenoderma gracilis (125662)
Westphalian C - Westphalian D314.6 - 306.95Canada (Nova Scotia) Clepsydrops sp., Archaeothyris florensis, Echinerpeton intermedium, Paleothyris acadiana, Limnostygis relictus (80111)
Westphalian D311.45 - 306.95USA (Ohio) Molgophis macrurus (178682 178696 178697 178698) Sauropleura digitata, Eusauropleura digitata, Molgophis macrurus, Molgophis wheatleyi, Cocytinus gyrinoides, Pleuroptyx clavatus, Brachydectes newberryi, Archaeothyris sp., Pelycosauria indet., Sauropleura longipes, Carbonodraco lundi (85292)
Westphalian D311.45 - 306.95USA (Illinois) Spondylerpeton spinatum, Infernovenator steenae, Brachydectes newberryi, Joermungandr bolti, Cephalerpeton ventriarmatum (79598)
Westphalian D311.45 - 306.95Czech Republic (Pilsen) Gephyrostegus watsoni, Gephyrostegus bohemicus, Sparodus validus, Archaeothyris sp., Hylonomus acuminatus, Brouffia orientalis, Coelostegus prothales, Amniota indet. (84835)