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Choristodera (choristodere)

Reptilia

Synonyms
Synonymy list
YearName and author
1876Choristodera Cope p. 350
1903Choristodera Osborn p. 456
1904Choristodera Osborn p. 111
1910Champsosauri Jaekel p. 333
1911Champsosauri Jaekel p. 147
1937Choristodera Roxo p. 44
1946Choristodera Kuhn p. 62
1956Choristodera Russell p. 4
1964Choristodera Estes p. 99
1966Choristodera Kuhn p. 35
1988Choristodera Carroll
1989Choristodera Gauthier et al. p. 345
1990Choristodera Evans
1992Choristodera Hecht p. 117
1993Choristodera Cvancara and Hoganson p. 15
1998Choristodera Gao and Fox p. 306
1999Choristodera Evans and Manabe p. 103
2000Choristodera Gao et al. p. 417
2001Choristodera Peng et al. p. 32
2005Choristodera Evans and Klembara
2005Choristodera Gao and Fox p. 428
2010Choristodera Hou et al.
2016Choristodera Ezcurra pp. 270, 282 fig. 48
2020Choristodera Dong et al.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
RankNameAuthor
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Choristodera()
Choristodera()

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. †Choristodera Cope 1876 [choristodere]
show all | hide all
G. †Coeruleodraco Matsumoto et al. 2019
+
Coeruleodraco jurassicus Matsumoto et al. 2019
Fm. †Cteniogenyidae Seiffert 1975
+
G. †Cteniogenys Gilmore 1928
+
Cteniogenys antiquus Gilmore 1928
+
Invalid names: Cteniogenys reedi Seiffert 1975 [synonym]
G. †Heishanosaurus Dong et al. 2020
+
Heishanosaurus pygmaeus Dong et al. 2020
G. †Hyphalosaurus Gao et al. 1999
+
Hyphalosaurus baitaigouensis Ji et al. 2004
Hyphalosaurus lingyuanensis Gao et al. 1999
+
Invalid names: Sinohydrosaurus lingyuanensis Li et al. 1999 [objective synonym]
Invalid names: Sinohydrosaurus Li et al. 1999 [objective synonym]
G. †Irenosaurus Efimov 1988
+
Irenosaurus egloni Efimov 1983
G. †Khurendukhosaurus Sigogneau-Russell and Efimov 1984
+
Khurendukhosaurus orlovi Sigogneau-Russell and Efimov 1984
Invalid names: Khurendukhosaurus bajkalensis Efimov 1996 [nomen dubium]
G. †Lazarussuchus Hecht 1992
+
Lazarussuchus dvoraki Evans and Klembara 2005
G. †Monjurosuchus Endo 1940
+
Monjurosuchus manchoukuoensis Zhou and Wang 2010
+
Invalid names: Rhynchosaurus orientalis Endo and Shikama 1942 [synonym]
Subor. †Neochoristodera Evans and Hecht 1993
+
Fm. †Champsosauridae Cope 1876 [champsosaur]
+
G. †Champsosaurichnus Lockley and Hunt 1995
+
Champsosaurichnus parfeti Lockley and Hunt 1995
G. †Eotomistoma Young 1964
+
G. †Champsosaurus Cope 1876
+
Champsosaurus gigas Erickson 1972
Champsosaurus lindoei Gao and Fox 1998
Champsosaurus natator Parks 1933
Champsosaurus norelli Brownstein 2022
Champsosaurus tenuis Erickson 1981
Invalid names: Champsosaurus annectens Cope 1876 [nomen vanum], Champsosaurus australis Cope 1881 [nomen vanum], Champsosaurus brevicollis Cope 1876 [nomen vanum], Champsosaurus inelegans Parks 1933 [nomen vanum], Champsosaurus inflatus Parks 1933 [nomen vanum], Champsosaurus profundus Cope 1876 [nomen vanum], Champsosaurus puercensis Cope 1882 [nomen vanum], Champsosaurus saponensis Cope 1882 [nomen vanum], Champsosaurus vaccinsulensis Cope 1876 [nomen vanum]
G. †Ikechosaurus Sigogneau-Russell 1981
+
Ikechosaurus gaoi Lü et al. 1999
Ikechosaurus magnus Efimov 1979
Ikechosaurus sunailinae Sigogneau-Russell 1981
Fm. †Simoedosauridae Lemone 1884
+
G. †Kosmodraco Brownstein 2022
+
Kosmodraco dakotensis Erickson 1987
Kosmodraco magnicornis Brownstein 2022
G. †Liaoxisaurus Gao et al. 2005
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Liaoxisaurus chaoyangensis Gao et al. 2005
G. †Simoedosaurus Gervais 1877
+
Invalid names: Simoedosaurus lemoinei Gervais 1877 [nomen dubium], Simoedosaurus peroni Lemoine 1884 [nomen dubium], Simoedosaurus remensis Lemoine 1884 [nomen dubium], Simoedosaurus suessonniensis Lemoine 1884 [nomen dubium]
G. †Tchoiria Efimov 1975
+
Tchoiria klauseni Ksepka et al. 2005
Tchoiria namsarai Efimov 1975
Invalid names: Champsosauriformes Hay 1930 [replaced]
G. †Novapes Lee et al. 2020
+
Novapes ulsanensis Lee et al. 2020
G. †Pachystropheus von Huene 1935
+
Pachystropheus rhaeticus von Huene 1935
G. †Philydrosaurus Gao and Fox 2005
+
Philydrosaurus proseilus Gao and Fox 2005
G. †Shokawa Evans and Manabe 1999
+
Shokawa ikoi Evans and Manabe 1999
Invalid names: Champsosauria Jaekel 1910 [synonym], Hyphalosauridae Gao and Fox 2005 [empty], Monjurosuchidae Endo 1940 [empty], Simoedosauria Dollo [synonym]
Diagnosis
ReferenceDiagnosis
H. F. Osborn 1903Amphibious Gavialoid Diaptosauria. Skull greatly elongated; teeth acrodont, internally folded. Vertebrae amphicoelous, imperforate. Hypocentra wanting in dorsals. Dorsal ribs two-headed, attached opposite centra. Interciavicle T-shcped. Pubis and ischium continuous; no puboischiadic foramen. Humerus with ectepi(radio-)condylar foramen.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Created: 2017-04-17 15:16:03
Modified: 2017-04-17 15:16:03
Source: subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Hendy et al. 2009

Age range: base of the Rhaetian to the top of the Tortonian or 208.50000 to 7.24600 Ma

Collections (347 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Rhaetian208.5 - 201.3United Kingdom (England) Pachystropheus rhaeticus (57958) Pachystropheus sp. (120898)
Rhaetian208.5 - 201.3Germany (Westphalia) Pachystropheus rhaeticus (218156)
Bathonian168.3 - 166.1United Kingdom (Scotland) Cteniogenys sp. (139746)
Bathonian168.3 - 166.1Russian Federation (Krasnoyarsk) Choristodera indet. (61891)
Bathonian168.3 - 166.1Morocco (Figuig) Choristodera indet. (176120)
Early/Lower Bathonian167.7 - 164.7United Kingdom (England) Choristodera indet., Cteniogenys sp. (31054)
Late/Upper Bathonian167.7 - 164.7Russian Federation (Moskva) Cteniogenys sp. (52961)
Late/Upper Bathonian167.7 - 164.7United Kingdom (England) Choristodera indet., Cteniogenys sp. (57124 57125 57139 166423) Cteniogenys sp. (39075)
Callovian166.1 - 163.5Kyrgyzstan (Jalal-Abad) Choristodera indet. (46547)
Oxfordian163.5 - 157.3China (Hebei) Coeruleodraco jurassicus (167300)

Youngest occurrences

Time interval Ma Country or state PBDB collection number
Cf356.8 - 55.8USA (Wyoming) Champsosaurus sp. (46676 46678)
Clarkforkian56.8 - 55.8USA (Montana) Champsosaurus sp. (137834) Simoedosaurus sp. (15079)
Clarkforkian56.8 - 55.8USA (Wyoming) Champsosaurus gigas (15181 15212)
Ypresian56.0 - 47.8Belgium (Brabant) Simoedosaurus lemoinei (144103)
Ypresian56.0 - 47.8Belgium (Hainaut) Champsosaurus lemoinei (87947)
Ypresian56.0 - 47.8Kazakhstan (Chimkent) Simoedosaurus sp. (49051)
MP 3028.4 - 23.03Germany (Bavaria) Lazarussuchus sp. (84364)
Late/Upper Oligocene - Early/Lower Miocene28.4 - 15.97France (Aude) Lazarussuchus inexpectatus (117925)
Orleanian20.0 - 15.97Czech Republic (Ústí nad Labem) Lazarussuchus dvoraki (48173)
Tortonian11.62 - 7.246Germany (Bavaria) Lazarussuchus sp. (206345)