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Chamops segnis

Reptilia - Chamopsiidae

Taxonomy
Chamops segnis was named by Marsh (1892). Its type specimen is YUM 1036, a mandible (fragment of left dentary), and it is a 3D body fossil. Its type locality is Lance Creek area (non-specific), which is in a Maastrichtian terrestrial horizon in the Lance Formation of Wyoming. It is the type species of Chamops.

Synonymy list
YearName and author
1892Chamops segnis Marsh
1902Chamops segnis Hay p. 474
1930Chamops segnis Hay p. 246
1964Chamops segnis Estes p. 101
1970Chamops segnis Estes and Berberian p. 5
1983Chamops segnis Estes p. 95 fig. 22
1989Chamops segnis Bryant p. 45
1991Chamops segnis Gao and Fox
2007Chamops segnis Nydam and Voci p. 213
2010Chamops segnis Nydam et al. p. 1091
2012Chamops segnis Longrich et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
RankNameAuthor
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Squamata()
—Scincomorpha()
—PolyglyphanodontiaAlifanov 2000
—Borioteiioidea
familyChamopsiidae()
genusChamops
speciessegnis

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.

†Chamops segnis Marsh 1892
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
Locomotion: actively mobilec
Created: 2017-04-17 15:15:35
Modified: 2017-04-17 15:15:35
Source: c = class, subp = subphylum, uc = unranked clade
References: Carroll 1988, Hendy et al. 2009

Age range: base of the Middle Turonian to the top of the Clarkforkian or 93.50000 to 54.90000 Ma

Collections (28 total)


Time interval Ma Country or state Original ID and collection number
Middle Turonian93.5 - 89.3USA (Utah) Chamops segnis (181356)
Early/Lower Campanian83.5 - 70.6USA (Utah) Chamops segnis (14421)
Late/Upper Campanian83.5 - 70.6USA (Utah) Chamops segnis (14466 75836 75847)
Middle Campanian83.5 - 70.6USA (Utah) Chamops segnis (61844)
Lancian70.6 - 66.0Canada (Alberta) Chamops segnis (14630 14632)
Lancian70.6 - 66.0USA (South Dakota) Chamops segnis (14537 192251)
Lancian70.6 - 66.0USA (Montana) Chamops segnis (14508 14534 14549)
Lancian70.6 - 66.0Canada (Saskatchewan) Chamops segnis (14558 14655)
Lancian70.6 - 66.0USA (Wyoming) Chamops segnis (14505 14514 14519 14524 14566 14577 14598 14606)
Late/Upper Maastrichtian70.6 - 66.0USA (Montana) Chamops segnis (13142)
Late/Upper Maastrichtian70.6 - 66.0USA (Wyoming) Chamops segnis (14585 type locality: 118461 118466)
Clarkforkian56.2 - 54.9USA (Montana) Chamops segnis (15079)