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Dvinosauria

Amphibia - Temnospondyli

Taxonomy
Dvinosauria was named by Warren (1998) [Definition from Schoch (2013): The most inclusive clade containing Trimerorhachis insignis but not Dissorophus multicinctus, Eryops megacephalus and Mastodonsaurus giganteus.]. It is not extant. It was considered monophyletic by Yates and Warren (2000), Schoch (2013).

It was assigned to Limnarchia by Yates and Warren (2000); to Temnospondyli by Warren (1998), Damiani and Rubidge (2003); and to Rhachitomi by Schoch (2013), Schoch and Milner (2014), Schoch and Voigt (2019).

Synonyms
Synonymy list
YearName and author
1973Trimerorhachoidea Daly p. 568
1988Trimerorhachoidea Carroll
1998Dvinosauria Warren p. 146
2000Dvinosauria Yates and Warren pp. 84, 89 fig. 1
2003Dvinosauria Damiani and Rubidge p. 23
2013Dvinosauria Schoch
2014Dvinosauria Schoch and Milner p. 52
2019Dvinosauria Schoch and Voigt

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
RankNameAuthor
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
classAmphibia
orderTemnospondyli()
—Eutemnospondyli
—Rhachitomi()
—Dvinosauria
—Dvinosauria

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. †Dvinosauria Warren 1998
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G. †Dawsonerpeton Zajic 1984
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†Dawsonerpeton polydens Fritsch 1879
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Invalid names: Macromerion juvenile Fritsch 1885 [synonym]
Invalid names: Dawsonia Fritsch 1879 [replaced]
Superfm. †Dvinosauroidea Säve-Söderbergh 1935
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G. †Bermanerpeton Werneburg et al. 2021
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†Bermanerpeton kinneyi Werneburg et al. 2021
Fm. †Dvinosauridae Watson 1919
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G. †Dvinosaurus Amalitzky 1921
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†Dvinosaurus campbelli Gubin 2004
†Dvinosaurus egregius Shishkin 1968
†Dvinosaurus primus Amalitzki 1921
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Invalid names: Dvinosaurus secundus Amalitzki 1921 [synonym], Dvinosaurus tertius Amalitzki 1921 [synonym]
†Dvinosaurus purlensis Shishkin 1968
Fm. †Eobrachyopidae Shishkin 1964
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G. †Acroplous Hotton 1959
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†Acroplous vorax Hotton 1959
G. †Isodectes Cope 1896
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†Isodectes obtusus Cope 1868
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Invalid names: Acheloma casei Broili 1913 [synonym], Colosteus foveatus Cope 1869 [synonym], Eobrachyops townendae Watson 1956 [synonym], Isodectes megalops Cope 1883 [synonym], Sauropleura latithorax Cope 1897 [synonym], Trimerorhachis conangulus Cope 1896 [synonym], Tuditanus minimus Moodie 1909 [synonym], Tuditanus sculptilis Moodie 1909 [synonym], Tuditanus tabulatus Cope 1877 [synonym], Tuditanus walcotti Moodie 1909 [synonym]
Invalid names: Branchiosauravus Romer 1930 [synonym], Eobrachyops Watson 1956 [synonym], Saurerpeton Moodie 1909 [synonym]
Fm. †Tupilakosauridae Kuhn 1960
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G. †Batrachosuchoides Shishkin 1967
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†Batrachosuchoides lacer Shishkin 1967
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Invalid names: Batrachosuchoides impressus Novikov and Shishkin 1994 [synonym]
G. †Kourerpeton Olson and Lammers 1976
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†Kourerpeton bradyi Olson and Lammers 1976
G. †Slaugenhopia Olson 1962
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†Slaugenhopia texensis Olson 1962
G. †Thabanchuia Warren 1998
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†Thabanchuia oomie Warren 1998
G. †Tupilakosaurus Nielsen 1954
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†Tupilakosaurus heilmani Nielsen 1954
†Tupilakosaurus wetlugensis Shishkin 1961
Invalid names: Kourerpetidae Olson and Lammers 1976 [synonym]
G. †Erpetosaurus Cope 1874
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†Erpetosaurus radiatus Cope 1874
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Invalid names: Diceratosaurus laevis Moodie 1909 [synonym], Diceratosaurus robustus Moodie 1909 [synonym]
G. †Eugyrinus Watson 1921
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†Eugyrinus wildi Woodward 1891
Fm. †Laidleriidae Cosgriff 1965
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G. †Uruyiella Pineiro et al. 2007
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†Uruyiella liminea Pineiro et al. 2007
G. †Neldasaurus Chase 1965
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†Neldasaurus wrightae Chase 1965
G. †Timonya Cisneros et al. 2015
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†Timonya anneae Cisneros et al. 2015
Fm. †Trimerorhachidae Cope 1882
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G. †Lafonius Berman 1973
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†Lafonius lehmani Berman 1973
G. †Nannospondylus Olson 1965
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Invalid names: Nannospondylus stewarti Olson 1965 [nomen dubium]
G. †Procuhy Cisneros et al. 2015
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†Procuhy nazariensis Cisneros et al. 2015
G. †Trimerorhachis Cope 1878
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†Trimerorhachis greggi Milner and Schoch 2013
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Invalid names: Trimerorhachis alleni Case 1910 [synonym], Trimerorhachis bilobatus Cope 1883 [synonym], Trimerorhachis medius Broom 1913 [synonym]
†Trimerorhachis mesops Cope 1896
†Trimerorhachis rogersi Olson 1955
†Trimerorhachis sandovalensis Berman and Reisz 1980
G. †Trypanognathus Schoch and Voigt 2019
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†Trypanognathus remigiusbergensis Schoch and Voigt 2019
Invalid names: Saurerpetontidae Chase 1965 [empty], Trimerorhachoidea [invalid subgroup]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: brackish, freshwater, terrestrialuc
Locomotion: actively mobilesubo
Life habit: amphibioussubo
Diet: carnivoresubo
Dispersal: waterc
Created: 2009-07-20 21:44:54
Modified: 2009-07-20 23:44:54
Source: subo = suborder, c = class, subp = subphylum, uc = unranked clade
References: Carroll 1988, Uhen 2004, Hendy et al. 2009

Age range: base of the Westphalian A to the top of the Late/Upper Triassic or 318.70000 to 201.40000 Ma

Collections (130 total)


Time interval Ma Country or state Original ID and collection number
Westphalian A318.7 - 316.9United Kingdom Eugyrinus wildi (175970)
Desmoinesian312.8 - 306.0USA (Ohio) Isodectes obtusus (176092)
Desmoinesian312.8 - 306.0USA (Pennsylvania) Tuditanus minimus, Tuditanus sculptilis (165526)
Westphalian D309.8 - 307.5USA (Illinois) Isodectes obtusus (79598)
Westphalian D309.8 - 307.5USA (Ohio) Dendrerpeton obtusum, Sauropleura latithorax, Tuditanus tabulatus, Diceratosaurus laevis, Diceratosaurus robustus, Tuditanus radiatus, Colosteus foveatus (85292)
Stephanian307.5 - 300.4USA (Pennsylvania) Saurerpeton obtusum (126535)
Gzhelian303.7 - 298.9USA (New Mexico) Lafonius lehmani (176523)
Virgilian303.7 - 298.9USA (Kansas) Trimerorhachidae indet. (180633) Trimerorhachis sp. (215555)
Virgilian303.7 - 298.9USA (New Mexico) Trimerorhachidae indet., Lafonius lehmani, Bermanerpeton kinneyi (179964)
Gzhelian - Asselian303.7 - 295.5Germany (Rhineland-Palatinate) Trypanognathus remigiusbergensis (109702)
Stephanian B301.5 - 301.0Czech Republic (Rakovník) Dawsonia polydens (154179)
Stephanian B301.5 - 301.0Czech Republic Dawsonerpeton polydens (155305)
Asselian298.9 - 295.5USA (Nebraska) Acroplous vorax (179620) Trimerorhachidae indet., Acroplous vorax (162676)
Asselian - Sakmarian298.9 - 290.1USA (Texas) Trimerorhachis insignis (11165)
Wolfcampian298.9 - 286.0USA (New Mexico) Trimerorhachis sandovalensis (180465) Trimerorhachis sp. (85436 181037 181078) Trimerorhachis sp., Trimerorhachis sandovalensis (180974)
Wolfcampian298.9 - 286.0USA (Texas) Neldasaurus wrightae (79162 176438 176442)
Cisuralian298.9 - 273.01Brazil (Piaui) Timonya anneae, Procuhy nazariensis (180810)
Asselian - Kungurian298.9 - 272.3USA (Texas) Neldasaurus wrightae (137131)
Permian298.9 - 251.902USA (Oklahoma) Trimerorhachis insignis (221391 221392) Trimerorhachis sp. (221389 221390)
Sakmarian293.52 - 290.1USA (Kansas) Acroplous vorax (179595 180979)
Sakmarian - Artinskian293.52 - 279.3USA (Texas) Trimerorhachis sp. (28324)
Sakmarian - Artinskian293.52 - 279.3USA (New Mexico) Trimerorhachis sp. (180988)
Artinskian290.1 - 279.3USA (Oklahoma) Trimerorhachis insignis (79402) Trimerorhachis sp. (220872)
Artinskian290.1 - 279.3USA (Texas) Trimerorhachis alleni (28143) Trimerorhachis bilobatus (28238) Trimerorhachis insignis (22714 80741 84716) Trimerorhachis medius (28145) Trimerorhachis sp. (13080 28141 28142 28146 28147 28150 28240)
Artinskian - Kungurian290.1 - 272.3USA (Texas) Trimerorhachis sp. (28241 28250 85299 85300)
Leonardian286.0 - 273.01USA (Texas) Trimerorhachis insignis, Trimerorhachis mesops (178739) Trimerorhachis rogersi (79601) Trimerorhachis sp. (177006)
Leonardian286.0 - 273.01USA (Oklahoma) Trimerorhachis insignis (79815 84941 85567 180991) Trimerorhachis sp. (87054 180990)
Kungurian279.3 - 272.3USA (Texas) Isodectes obtusus, Acheloma casei, Trimerorhachis mesops (28256) Isodectes sp. (28261) Trimerorhachis insignis (27704 177019) Trimerorhachis insignis, Pariotichus megalops, Trimerorhachis conangulus (28264) Trimerorhachis sp. (22716 28251 28270 28272 28273 67735 177001 177017) Trimerorhachis sp., Trimerorhachis greggi (28267)
Kungurian279.3 - 272.3USA (Oklahoma) Trimerorhachis sp. (67945)
Kungurian279.3 - 272.3Brazil (Maranhao) Timonya anneae (180809)
Kungurian - Roadian279.3 - 268.8USA (Texas) Slaugenhopia texensis (79600 80717)
Roadian - Wordian272.3 - 264.28USA (Oklahoma) Nannospondylus stewarti (27414)
Urzhumian266.9 - 264.28Russian Federation Dvinosaurus sp. (22644)
Wordian - Capitanian266.9 - 259.51France (Languedoc-Roussillon) Tupilakosauridae indet. (195216)
Tatarian266.9 - 257.4Russian Federation (Orenburg) Dvinosaurus sp. (196153)
Capitanian264.28 - 259.51Russian Federation Dvinosaurus sp. (197597)
Early/Lower Severodvinian264.28 - 259.51Russian Federation (Kirov) Dvinosaurus sp. (28854)
Late/Upper Severodvinian264.28 - 259.51Russian Federation (Tatarstan) Dvinosaurus primus (80712)
Late/Upper Severodvinian264.28 - 259.51Russian Federation (Vologda) Dvinosaurus sp. (233448 233451)
Late/Upper Severodvinian264.28 - 259.51Russian Federation (Orenburg) Dvinosaurus primus (189501) Dvinosaurus sp. (189505)
Late/Upper Severodvinian - Vyatkian264.28 - 257.4Russian Federation (Vladimir) Dvinosaurus campbelli (93026)
Late/Upper Severodvinian - Vyatkian264.28 - 257.4Russian Federation (Vologda) Dvinosaurus primus (93025 187939)
Late/Upper Severodvinian - Vyatkian264.28 - 257.4Russian Federation (Orenburg) Dvinosaurus primus (93030) Dvinosaurus sp. (179653 189495)
Late/Upper Severodvinian - Vyatkian264.28 - 257.4Russian Federation (Arkhangelsk) Dvinosaurus primus (27952) Dvinosaurus secundus, Dvinosaurus primus, Dvinosaurus tertius (28065)
Wuchiapingian259.9 - 254.17Russian Federation (Vologda) Dvinosaurus primus (104754)
Vyatkian259.51 - 257.4Russian Federation (Vladimir) Dvinosaurus egregius (86346 189402)
Vyatkian259.51 - 257.4Russian Federation (Archangel'sk) Dvinosaurus secundus, Dvinosaurus primus, Dvinosaurus tertius (37202)
Vyatkian259.51 - 257.4Russian Federation (Nizhnii Novgorod) Dvinosaurus purlensis (86356)
Induan252.17 - 251.2Greenland (Northeast Greenland National Park) Tupilakosaurus heilmani (143882) Tupilakosaurus sp. (143883)
Induan252.17 - 251.2Russian Federation (Samara) Tupilakosaurus sp. (196088 196092)
Induan252.17 - 251.2Russian Federation (Orenburg) Tupilakosaurus sp. (195805 195811 195820 195824 195834 195852 196033 196034 196045 196047 196052)
Induan252.17 - 251.2Russian Federation (Nizhegorod) Tupilakosaurus wetlugensis (28396)
Induan252.17 - 251.2South Africa (Free State) Thabanchuia oomie (145516)
Spathian251.3 - 247.2Russian Federation (Orenburg) Batrachosuchoides sp. (195823 195825)
Olenekian251.2 - 247.2Poland (Malopolskie) Batrachosuchoides sp. (38528)
Olenekian251.2 - 247.2Russian Federation (Orenburg) Batrachosuchoides sp. (93205)
Olenekian251.2 - 247.2Russian Federation (Kirov) Batrachosuchoides lacer (93104)
Olenekian251.2 - 247.2Russian Federation (Volgograd) Batrachosuchoides sp. (27343)
Olenekian251.2 - 247.2Russian Federation (Komi) Batrachosuchoides sp. (85454)
Olenekian251.2 - 247.2Russian Federation (Arkhangel'sk) Batrachosuchoides impressus (189553)
Late/Upper Triassic237.0 - 201.4Uruguay (Cerro Largo) Dvinosauria indet., Uruyiella liminea (86401)