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Sister taxa
Embolomeri, Ichthyostegalia

View classification of included taxa

Synonymy list
YearName and author
1841Labyrinthodon pachygnathus Owen
1841Labyrinthodon ventricosus Owen
1842Labyrinthodon laniarius Owen
1842Labyrinthodon ventricosus Owen p. 191
1854Labyrinthodon pachygnathus Mantell p. 753
1861Labyrinthodon ventricosus Owen p. 210
1861Labyrinthodon pachygnathus Owen p. 212
1876Petrophryne major Owen
1887Temnospondyli von Zittel
1896Zatrachys conchigerus Cope
1907Ptychosphenodon Seeley
1907Ptychosphenodon browni Seeley
1908Syphonodon Seeley
1908Syphonodon thecomastodon Seeley
1909Temnospondyli Moodie p. 39
1913Phrynosuchus Broom
1913Phrynosuchus whaitsi Broom
1925Phrynosuchus whaitsi Haughton p. 258
1932Arkanserpeton Lane
1932Arkanserpeton arcuatum Lane p. 315
1934Temnospondyli Swinton p. 78
1939Saurischiocomes Kuhn p. 275
1939Saurischiocomes keuperinus Kuhn p. 275 figs. Pl. 21:3-4; Pl. 2-:6
1942Saurischiocomes keuperinus Kuhn p. 194
1946Temnospondyli Kuhn p. 51
1947Temnospondyli Romer p. 311
1948Otuminisaurus Rusconi
1948Otuminisaurus limensis Rusconi
1951Otuminisaurus Rusconi
1958Hesperoherpeton Peabody
1958Hesperoherpeton garnettense Peabody
1964Saurischiocomes Kuhn p. 325
1967Temnospondyli Carroll p. 113
1969Temnospondyli Bolt p. 888
1972Hesperoherpeton Carroll et al. p. 21
1972Hesperoherpeton garnettense Carroll et al. p. 43
1973Temnospondyli Daly p. 568
1978Triassurus Ivakhnenko
1978Triassurus sixtelae Ivakhnenko
1982Temnospondyli Gardiner p. 228
1988Arkanserpeton Carroll
1988Saurischiocomes Carroll
1988Temnospondyli Carroll
1988Triassurus Carroll
1989Temnospondyli Gauthier et al. p. 339
1989Temnospondyli Murry p. 271
1998Temnospondyli Sumida et al. p. 610
2000Temnospondyli Laurin et al. p. 120 fig. 2b
2000Temnospondyli Schoch and Milner
2000Temnospondyli Shishkin et al. p. 40
2000Temnospondyli Yates and Warren p. 79
2002Temnospondyli Sepkoski, Jr.
2004Temnospondyli Sequeira p. 37
2005Temnospondyli Martens et al.

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phylumChordataHaeckel 1847
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.

K. A. von Zittel 1887Wirbelkörper aus mehreren getrennten Knochenstücken bestehend, meist rhachitom, selten embolomer. Hinterhaupt knorpelig oder verknöchert. Zahnsubstanz im inneren meist radial gefaltet.
A. S. Romer 1947Vertebrae generally rhachitomous; pleurocentra typically paired latero-dorsal structures, never forming complete discs and sometimes lost. Tabular not in contact with parietal. Vomers broad, widely separating internal nares. Laterosphenoid region of braincase completely walled by bone or cartilage. ?No supraoccipital bone. Manus with four digits.
No measurements are available
Composition: phosphaticsubp
Environment: brackish, freshwater, terrestrialsubp
Locomotion: actively mobilesubo
Life habit: amphibioussubo
Diet: carnivoresubo
Created: 2009-07-20 21:44:54
Modified: 2009-07-20 23:44:54
Source: subo = suborder, subp = subphylum
References: Kiessling 2004, Carroll 1988, Hendy et al. 2009

Age range

Maximum range based only on fossils: base of the Famennian to the top of the Holocene or 372.20000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 358.9 Ma

Collections (2366 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Famennian372.2 - 358.9Greenland Acanthostega gunnari (176216)
Mississippian358.9 - 323.2USA (Pennsylvania) Temnocorpichnus isaacleai (197984)
Tournaisian - Gzhelian358.9 - 298.9United Kingdom (Scotland) Matthewichnus sp., Pseudobradypus sp. (27703)
Asbian339.4 - 336.0USA (Iowa) Embolomeri indet. (68318)
Brigantian336.0 - 326.4United Kingdom (Scotland) T. large taxon, Temnospondyli indet. (22725)
Serpukhovian - Bashkirian330.9 - 315.2Canada (Nova Scotia) Pholiderpeton bretonense (175248)
Pendleian326.4 - 318.1United Kingdom (England) Embolomeri indet. (22726)
Namurian - Westphalian326.4 - 306.95USA (Arkansas) Eobaphetes kansensis (178846)
Bashkirian323.2 - 315.2United Kingdom (England) Eogyrinus attheyi (176264) Eogyrinus attheyi, Pteroplax cornuta (177139)
Pennsylvanian323.2 - 298.9USA (New Mexico) Eryops sp. (125140)
Westphalian A318.1 - 314.6United Kingdom (Scotland) Pholiderpeton scutigerum (175922)
Westphalian A318.1 - 314.6Canada (Nova Scotia) Dendrerpeton confusum (86946) Dendrerpeton sp. (13219) Dendrysekos helogenes (175937) Hylonomus aciedentatus, Calligenethlon watsoni, Dendrysekos helogenes, Batrachia indet., Hylonomus lyelli (28069)
Westphalian A318.1 - 314.6United Kingdom Eugyrinus wildi (175970)
Westphalian A318.1 - 314.6United Kingdom (England) Anthracosaurus russelli (178845) Pholiderpeton scutigerum (175174) Pholiderpeton scutigerum, Palaeogyrinus decorus (176254)
Westphalian A318.1 - 314.6Ireland (Lenister) Procochleosaurus jarrowensis, Dendrerpeton rugosum (175806)
Westphalian318.1 - 306.95USA (Alabama) Matthewichnus caudifer, Nanopus reidiae (81525)
Westphalian318.1 - 306.95United Kingdom (Scotland) Eogyrinus attheyi (179053) Pholiderpeton sp., Anthracosaurus russelli (176242)
Westphalian318.1 - 306.95USA (Pennsylvania) Tuditanus minimus, Tuditanus sculptilis (165526)
Moscovian315.2 - 307.0United Kingdom Pholiderpeton scutigerum (137311)
Westphalian B - Westphalian C314.6 - 311.45United Kingdom (Scotland) Anthracosaurus russelli, Eogyrinus attheyi (178804)