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Amphibiosauria was named by Kuhn (1967).

It was assigned to Amphibia by Haubold (1971).

Synonymy list
YearName and author
1946Batrachosauria Efremov
1967Amphibiosauria Kuhn
1971Amphibiosauria Haubold p. 20
1988Batrachosauria Gauthier et al. p. 139 fig. 4.3

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EubilateriaAx 1987
phylumChordataHaeckel 1874
subclassDipnotetrapodomorpha(Nelson 2006)
subclassAmphibiosauriaKuhn 1967
subclassAmphibiosauriaKuhn 1967

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.

Subcl. †Amphibiosauria Kuhn 1967
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Invalid names: Batrachosauria Efremov 1946 [replaced]
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: Carroll 1988, Johnson and Madden 1997, Hendy et al. 2009, Vizcaíno et al. 2010, Legendre 1988, Peczkis 1995, Uhen and Gingerich 1995

Age range

Maximum range based only on fossils: base of the Tournaisian to the top of the Holocene or 358.90000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 323.2 Ma

Collections (42080 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)
Bashkirian323.2 - 315.2United Kingdom (England) Lysorophus sp. (177139)
Pennsylvanian323.2 - 298.9USA (Wyoming) Steganoposaurus belli (197983)
Pennsylvanian323.2 - 298.9USA (Massachusetts) Dromopus woodworthi (34780)
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 - 307.0Canada (Nova Scotia) Dendromaia unamakiensis (207132)
Moscovian315.2 - 307.0USA (Illinois) Diabloroter bolti (201784)
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) 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) Infernovenator steenae, Brachydectes newberryi, Joermungandr bolti, Cephalerpeton ventriarmatum (79598)
Westphalian D311.45 - 306.95Czech Republic (Pilsen) Sparodus validus, Archaeothyris sp., Hylonomus acuminatus, Brouffia orientalis, Coelostegus prothales, Amniota indet. (84835)
Kasimovian307.0 - 303.7USA (Illinois) Sphenacodontidae indet. (224241)
Kasimovian - Kungurian307.0 - 272.3USA (Utah) Edaphosaurus sp., Shashajaia bermani, Sphenacodon sp., Ophiacodon navajovicus (218159)
Stephanian306.95 - 298.9USA (Pennsylvania) Megamolgophis agostinii, Lysorophus dunkardensis (126535)
Stephanian306.95 - 298.9USA (Ohio) Molgophis macrurus (177046)
Stephanian306.95 - 298.9USA (West Virginia) Lysorophus dunkardensis (178677)