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

Neochoristodera

Reptilia

Synonyms
Synonymy list
YearName and author
1930Champsosauriformes Hay p. 130
1993Neochoristodera Evans and Hecht
2005Neochoristodera Gao and Fox p. 438
2007Neochoristodera Gao and Li p. 270
2007Neochoristodera Matsumoto et al. p. 342
2013Neochoristodera Matsumoto et al.
2019Neochoristodera Matsumoto et al.

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

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
RankNameAuthor
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Eosuchia()
—Neodiapsida
—SauriaGauthier 1984
—Choristodera()
suborderNeochoristoderaEvans and Hecht 1993
suborderNeochoristoderaEvans and Hecht 1993

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.

Subor. †Neochoristodera Evans and Hecht 1993
show all | hide all
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
+
†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]
Diagnosis
No diagnoses are available
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 Valanginian to the top of the Late/Upper Paleocene or 139.80000 to 55.80000 Ma

Collections (269 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Cretaceous145.0 - 100.5China (Nei Mongol) Ikechosaurus sunailinae (46936)
Valanginian139.8 - 132.9USA (Utah) Champsosauridae indet. (27025)
Valanginian - Early/Lower Hauterivian139.8 - 130.0China (Nei Mongol) Eotomistoma sp., Ikechosaurus sunailinae (46931)
Valanginian - Albian139.8 - 100.5China (Nei Mongol) Champsosauridae indet. (46907)
Late/Upper Barremian130.0 - 125.45China (Nei Mongol) Ikechosaurus sp. (85296)
Aptian125.0 - 113.0Japan (Ishikawa) Neochoristodera indet. (155846)
Aptian125.0 - 113.0China (Nei Monggol) Ikechosaurus gaoi (199759)
Aptian125.0 - 113.0Mongolia (Omnogov) Tchoiria klauseni (79938)
Aptian125.0 - 113.0China (Liaoning) Ikechosaurus pijiagouensis (136747) Liaoxisaurus chaoyangensis (142343)
Aptian125.0 - 113.0China (Nei Mongol) Champsosauridae indet. (46881)
Late/Upper Aptian - Early/Lower Albian122.46 - 109.0Mongolia (Dornogov) Tchoiria magnus (53159)
Middle Albian - Late/Upper Albian109.0 - 99.6Mongolia (Dornogov) Champsosauridae indet. (52007 55252 55328)
Late/Upper Cretaceous100.5 - 66.0China (Nei Mongol) Eotomistoma multidentata (123377)
Late/Upper Cenomanian99.6 - 93.5Canada (Nunavut) Champsosaurus sp. (45559)
Campanian83.6 - 72.1Canada (Alberta) Champsosaurus sp. (34375)
Campanian83.6 - 72.1USA (Montana) Champsosauridae indet. (22689) Champsosaurus sp. (22691 59373)
Early/Lower Campanian83.5 - 70.6Austria (Niederosterreich) Champsosauridae indet. (48720)
Judithian83.5 - 70.6USA (Wyoming) Champsosaurus natator (14458)
Late/Upper Campanian83.5 - 70.6Canada (Alberta) Champsosauridae indet. (65904 187581) Champsosaurus annectens (133004) Champsosaurus natator (22695 22696 22697 22698 34302 34303 34305 34307 34309 34310 34311 34312 34313 34315 34319 34320 34321 34322 45238 45260 45261 45262 45264 47784 47793 47807 47811 47812 47814 47816 189515) Champsosaurus sp. (22659 36264 45671 45674 45822 45892 45893 45897 45898 98674 98677 219724 227125)
Middle Campanian83.5 - 70.6USA (Montana) Champsosaurus sp. (14437)
Middle Campanian83.5 - 70.6Canada (Alberta) Champsosaurus lindoei (117922 118188 118190) Champsosaurus natator (45240 47794 47795 47809 117923 117927 117928 117929 117930) Champsosaurus sp. (45560 45561 45564 45565 45566 45567 45670 45820 118189 181024)
Middle Campanian - Late/Upper Campanian83.5 - 70.6Canada (Saskatchewan) Champsosaurus sp. (14494 75030 229975)
Middle Campanian - Late/Upper Campanian83.5 - 70.6USA (Montana) Champsosaurus lindoei (231393) Champsosaurus sp. (14490 50907 59217)
Middle Campanian - Late/Upper Campanian83.5 - 70.6USA (New Jersey) Neochoristodera indet. (221054)
Middle Campanian - Late/Upper Campanian83.5 - 70.6Canada (Alberta) Champsosauridae indet. (167986) Champsosaurus annectens (150749) Champsosaurus sp. (45819 45821 45894 62722)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0USA (New Jersey) Neochoristodera indet. (221052)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0Canada (Alberta) Champsosaurus albertensis (117924) Champsosaurus sp. (34373 52072 52249 163050)
Late/Upper Campanian - Maastrichtian83.5 - 66.0Canada (Alberta) Champsosauridae indet. (45757 45758)
Maastrichtian72.1 - 66.0USA (South Dakota) Champsosaurus sp. (45391)
Maastrichtian72.1 - 66.0USA (North Dakota) Champsosaurus sp. (45135 45380)
Early/Lower Maastrichtian70.6 - 66.0Canada (Alberta) Champsosauridae indet. (220119) Champsosaurus sp. (14502 52468 55363 135740)
Lancian70.6 - 66.0USA (Wyoming) Champsosaurus sp. (14505 14514 14519 14524 14538 14540 14557 14566 75447)
Lancian70.6 - 66.0USA (North Dakota) Champsosaurus laramiensis (14620 14621) Champsosaurus sp. (14610 137601 137704 137706 137707 137710 137711 137712 137713 137715 137716 137724 137728 137731)
Lancian70.6 - 66.0USA (Colorado) Champsosaurus sp. (14640)
Lancian70.6 - 66.0USA (Montana) Champsosauridae indet. (14614 14616) Champsosauridae indet., Champsosaurus natator (14512 14615) Champsosauridae indet., Champsosaurus sp. (14580) Champsosaurus natator (14533 14552) Champsosaurus sp. (14508 14547 14548 14560 14613 14653) Champsosaurus sp., Champsosaurus natator (14549 14582 14639 14654)
Lancian70.6 - 66.0USA (South Dakota) Champsosaurus sp. (14537 192251)
Lancian70.6 - 66.0Canada (Saskatchewan) Champsosaurus sp. (14655)
Late/Upper Maastrichtian70.6 - 66.0Canada (Saskatchewan) Champsosaurus laramiensis (180638) Champsosaurus sp. (14555 35251 45675 54105)
Late/Upper Maastrichtian70.6 - 66.0USA (Montana) Champsosauridae indet. (189003) Champsosaurus laramiensis, Champsosaurus ambulator (131865) Champsosaurus sp. (13142 14674 88990 183109 183110)
Late/Upper Maastrichtian70.6 - 66.0USA (North Dakota) Champsosaurus laramiensis (231465) Champsosaurus sp. (45099 45102 45109 45110 45111 45112 45114 45117 45118 45120 45122 45124 45130 45134 45136 45144 45145 45299 45381 45382 57919 137720 141583)
Late/Upper Maastrichtian70.6 - 66.0Canada (Alberta) Champsosaurus sp. (14569)
Late/Upper Maastrichtian70.6 - 66.0USA (Wyoming) Champsosauridae indet. (22638) Champsosaurus sp. (14585)
Late/Upper Maastrichtian70.6 - 66.0USA (South Dakota) Champsosauridae indet. (47034) Champsosaurus sp. (45388 45389 45390 48551 50082 150891 150892 150893 150894 150895 224484)
Pu166.0 - 63.3USA (Montana) Champsosauridae indet. (14762)
Pu266.0 - 63.3Canada (Alberta) Champsosauridae indet. (220172)
Puercan66.0 - 63.3USA (Utah) Champsosaurus sp. (14692 14790)
Puercan66.0 - 63.3USA (Montana) Champsosaurus sp. (14766 123518)
Puercan66.0 - 63.3USA (Colorado) Champsosaurus sp. (176747 205944 206079 209904)
Puercan66.0 - 63.3USA (Wyoming) Champsosaurus sp. (14729 14730 14796 14797 14805)
Puercan66.0 - 63.3Canada (Saskatchewan) Champsosauridae indet. (23503) Simoedosaurus sp. (14768)
Danian66.0 - 61.6USA (North Dakota) Champsosaurus sp. (14962)
Torrejonian63.8 - 60.9USA (Texas) Champsosaurus sp. (110177)
Torrejonian63.8 - 60.9USA (Wyoming) Champsosaurus sp. (14912)
Torrejonian63.8 - 60.9USA (Montana) Champsosaurus sp. (14874)
Torrejonian63.8 - 60.9USA (Utah) Champsosauridae indet. (14830)
Ti361.7 - 56.8Canada (Alberta) Champsosauridae indet. (14928) Champsosaurus sp. (14992)
Ti461.7 - 56.8Canada (Saskatchewan) Champsosaurus gigas (14978)
Tiffanian61.7 - 56.8USA (Wyoming) Champsosaurus norelli (15029) Champsosaurus sp. (15017) Simoedosaurus sp. (118025 118026)
Tiffanian61.7 - 56.8USA (North Dakota) Champsosaurus gigas (27640) Champsosaurus sp., Champsosaurus gigas (15000) Champsosaurus sp., Simoedosaurus sp. (14931) Champsosaurus tenuis (118170) Simoedosaurus dakotensis (27624)
Late/Upper Paleocene58.7 - 55.8USA (North Dakota) Champsosaurus gigas (78394)
Late/Upper Paleocene58.7 - 55.8France (Champagne-Ardenne) Champsosaurus sp., Simoedosaurus sp. (117931)
Late/Upper Paleocene58.7 - 55.8France (Oise) Champsosaurus sp. (166598)
Late/Upper Paleocene58.7 - 55.8Canada (Alberta) Champsosauridae indet. (176516)
Late/Upper Paleocene58.7 - 55.8Kazakhstan (Chimkent) Simoedosaurus sp. (48888)
Cf256.2 - 54.9USA (Wyoming) Champsosaurus sp. (46679)
Cf356.2 - 54.9USA (Wyoming) Champsosaurus sp. (46676 46678)
Clarkforkian56.2 - 54.9USA (Wyoming) Champsosaurus gigas (15181 15212)
Clarkforkian56.2 - 54.9USA (Montana) Champsosaurus sp. (137834) Simoedosaurus sp. (15079)
Ypresian56.0 - 47.8Belgium (Hainaut) Champsosaurus lemoinei (87947)
Ypresian56.0 - 47.8Belgium (Brabant) Simoedosaurus lemoinei (144103)
Ypresian56.0 - 47.8Kazakhstan (Chimkent) Simoedosaurus sp. (49051)