Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections


Synonymy list
YearName and author
1880Cotylosauria Cope p. 304
1902Cotylosauria Hay p. 426
1903Cotylosauria Osborn p. 276
1904Cotylosauria Osborn p. 99
1911Cotylosauria Jaekel p. 121
1913Cotylosauria Broom
1934Cotylosauria Swinton p. 52
1937Cotylosauria Roxo p. 42
1946Cotylosauria Kuhn p. 55
1950Cotylosauria Stovall p. 46
1954Cotylosauria Haughton and Brink p. 3
1956Cotylosauria Romer p. 476
1965Cotylosauria Lewis and Vaughn p. C12
1966Cotylosauria Kuhn p. 12
1967Cotylosauria Carroll p. 1256
1969Cotylosauria Carroll p. 152
1973Cotylosauria Daly p. 584
1975Cotylosauria Colbert and Kitching p. 3
1977Cotylosauria Gow p. 110
1979Cotylosauria Heaton p. 11
1983Cotylosauria Lavina p. 53
1988Cotylosauria Gauthier et al. p. 139 fig. 4.4
1995Cotylosauria Laurin and Reisz p. 173 fig. 2

Is something missing? Join the Paleobiology Database and enter the data

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.

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: Holman 2000, Legendre 1988, Peczkis 1995, Hopson 1973, Carroll 1988, Hendy et al. 2009

Age range

Maximum range based only on fossils: base of the Mississippian 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 (37625 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Mississippian358.9 - 323.2USA (Virginia) Dromopus aduncus (104796)
Pennsylvanian323.2 - 298.9USA (Massachusetts) Dromopus woodworthi (34780)
Pennsylvanian323.2 - 298.9USA (Pennsylvania) Thenaropus heterodactylus (200134)
Pennsylvanian323.2 - 298.9USA (Georgia) Cincosaurus cobbi (150407)
Westphalian A318.1 - 314.6Canada (Nova Scotia) Hylonomus lyelli (86946) Hylonomus lyelli, Hylonomus latidens, Hylerpeton curtidentatum, Protoclepsydrops haplous, Hylonomus wymani (28069)
Westphalian318.1 - 306.95USA (Alabama) Cincosaurus cobbi, Cincosaurus fisheri, Cincosaurus jaggerensis, Cincosaurus jonesii (84135) Notalacerta missouriensis, Cincosaurus cobbi (81525)
Moscovian315.2 - 307.0Canada (Nova Scotia) Dendromaia unamakiensis (207132)
Westphalian C - Westphalian D314.6 - 306.95Canada (Nova Scotia) Limnostygis relictus, Clepsydrops sp., Archaeothyris florensis, Paleothyris acadiana, Echinerpeton intermedium (80111)
Westphalian D311.45 - 306.95USA (Ohio) Sauropleura longipes, Archaeothyris sp., Pelycosauria indet. (85292)
Westphalian D311.45 - 306.95USA (Illinois) Cephalerpeton ventriarmatum (79598)
Westphalian D311.45 - 306.95Czech Republic (Pilsen) Brouffia orientalis, Coelostegus prothales, Amniota indet., Archaeothyris sp., Hylonomus acuminatus (84835)
Stephanian306.95 - 298.9France (Bourgogne) Stereorhachis dominans (80716)
Stephanian - Virgilian306.95 - 298.9USA (Illinois) Milosaurus mccordi (81114)
Missourian305.9 - 303.4USA (Colorado) Desmatodon hesperis, Limnoscelis dynatis, Ianthasaurus sp. (180938) Limnoscelis dynatis (77786)
Missourian305.9 - 303.4USA (Illinois) Clepsydrops collettii, Archaeobelus vellicatus, Clepsydrops pedunculatus, Clepsydrops vinslovii, Clepsydrops sp., Captorhinus illinoisensis, Reptilia indet. (80714)
Missourian305.9 - 303.4USA (Kansas) Haptodus garnettensis, Ianthasaurus hardestii, Amniota indet., Edaphosaurus ecordi, Petrolacosaurus kansensis, Podargosaurus hibbardi, Ianthodon schultzei, Kenomagnathus scotti, Xyrospondylus ecordi, Tenuacaptor reiszi (80784)
Missourian305.9 - 303.4USA (Pennsylvania) Edaphosaurus raymondi (80775) Edaphosaurus raymondi, Desmatodon hollandi (180937)
Missourian - Virgilian305.9 - 298.9USA (Pennsylvania) Clepsydrops magnus (173987)
Stephanian B304.8 - 303.4Czech Republic Macromerion schwartzenbergii, Naosaurus mirabilis, Macromerion schwarzenbergii (154179)
Gzhelian303.7 - 298.9Germany (Rhineland-Palatinate) Cryptovenator hirschbergeri, Remigiomontanus robustus (109702)