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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 gg
Environment: brackish, freshwater, terrestrialuc
Locomotion: actively mobilec
Created: 2017-04-17 15:15:19
Modified: 2017-04-17 15:15:19
Source: g = genus, c = class, subp = subphylum, uc = unranked clade
References: Hendy et al. 2009, Madden 1997, Czaplewski 1997, Vizcaíno et al. 2010, Legendre 1988, Peczkis 1995, Johnson and Madden 1997, Carroll 1988

Age range

Maximum range based only on fossils: base of the Ludlow to the top of the Holocene or 427.40000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 423.0 Ma

Collections (43118 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Ludlow427.4 - 423.0United Kingdom (Wales) Keilorites sp. (74805)
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 (Massachusetts) Dromopus woodworthi (34780)
Pennsylvanian323.2 - 298.9USA (Wyoming) Steganoposaurus belli (197983)
Westphalian A318.7 - 316.9Canada (Nova Scotia) Asaphestera intermedia, Trachystegos megalodon, Leiocephalikon problematicum, Hylonomus lyelli (86946) Protoclepsydrops haplous, Hylerpeton dawsoni, Leiocephalikon eutheton, Amblyodon problematicum, Hylerpeton curtidentatum, Hylonomus lyelli, Hylonomus latidens, Hylonomus wymani (28069)
Westphalian A318.7 - 316.9United Kingdom (England) Lysorophus sp. (175174)
Westphalian A - Westphalian B318.7 - 314.6USA (Arizona) Elfridia bulbidens (92271)
Moscovian315.2 - 307.0Canada (Nova Scotia) Dendromaia unamakiensis (207132)
Moscovian315.2 - 307.0Czech Republic Adenoderma gracilis (125662)
Moscovian315.2 - 307.0USA (Illinois) Diabloroter bolti (201784)
Westphalian C - Westphalian D314.6 - 307.5Canada (Nova Scotia) Limnostygis relictus, Echinerpeton intermedium, Archaeothyris florensis, Clepsydrops sp., Paleothyris acadiana (80111)
Westphalian D309.8 - 307.5Czech Republic (Pilsen) Archaeothyris sp., Sparodus validus, Brouffia orientalis, Hylonomus acuminatus, Coelostegus prothales, Amniota indet. (84835)
Westphalian D309.8 - 307.5USA (Illinois) Joermungandr bolti, Brachydectes newberryi, Infernovenator steenae, Cephalerpeton ventriarmatum (79598)
Westphalian D309.8 - 307.5USA (Ohio) Molgophis macrurus (178682 178696 178697 178698) Pelycosauria indet., Melanedaphodon hovaneci, Archaeothyris sp., Pleuroptyx clavatus, Molgophis wheatleyi, Cocytinus gyrinoides, Brachydectes newberryi, Molgophis macrurus, Sauropleura longipes, Carbonodraco lundi (85292)
Stephanian307.5 - 300.4USA (West Virginia) Lysorophus dunkardensis (178677)
Stephanian307.5 - 300.4USA (Pennsylvania) Lysorophus dunkardensis, Megamolgophis agostinii (126535)
Stephanian307.5 - 300.4USA (Ohio) Molgophis macrurus (177046)
Stephanian307.5 - 300.4France (Bourgogne) Stereorhachis dominans (80716)