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Champsosaurus laramiensis

Reptilia

Taxonomy
Champsosaurus laramiensis was named by Brown (1905). Its type specimen is AMNH 982, a skeleton, and it is not a trace fossil. Its type locality is Hell Creek (AMNH general), which is in a Maastrichtian terrestrial horizon in the Hell Creek Formation of Montana.

Synonymy list
YearName and author
1905Champsosaurus laramiensis Brown
1930Champsosaurus laramiensis Hay p. 133
1972Champsosaurus laramiensis Erickson p. 10
1998Champsosaurus laramiensis Gao and Fox p. 336
2023Champsosaurus laramiensis Dudgeon et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Eugnathostomata
—Teleostomi(Bonaparte 1836)
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
genusChampsosaurus
specieslaramiensis

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.

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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: freshwaterg
Locomotion: actively mobilep
Life habit: aquaticg
Diet: piscivoreg
Created: 2005-09-14 13:39:08
Modified: 2005-09-14 15:39:08
Source: g = genus, subp = subphylum, p = phylum
References: Kiessling 2004, Carroll 1988, Bryant 1989

Age range: Late/Upper Maastrichtian or 72.20000 to 66.00000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Lancian72.2 - 66.0USA (North Dakota) Champsosaurus laramiensis (14620 14621)
Late/Upper Maastrichtian72.2 - 66.0USA (Montana) Champsosaurus laramiensis (type locality: 131865)
Late/Upper Maastrichtian72.2 - 66.0USA (North Dakota) Champsosaurus laramiensis (231465)
Late/Upper Maastrichtian72.2 - 66.0Canada (Saskatchewan) Champsosaurus laramiensis (180638)