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Onchosaurus

Chondrichthyes - Sclerorhynchiformes - Sclerorhynchidae

Taxonomy
Onchosaurus was named by Gervais (1852) [Sepkoski's age data: K Turo K Sant Sepkoski's reference number: 884]. Its type is Onchosaurus radicalis.

It was assigned to Mosasauridae by Gervais (1852), Gervais (1853); to Ganopristinae by Arambourg (1940); to Pristidae by Tabaste (1963); to Galeomorphii by Sepkoski (2002); and to Sclerorhynchidae by Cappetta (1987), Suárez and Cappetta (2004), Bourdon et al. (2011), Corral et al. (2012).

Species
O. (Onchosaurus), O. pharao (syn. Ischyrhiza iwakiensis), O. radicalis (type species)
Species lacking formal opinion data
O. avonicolus

Synonyms
Synonymy list
YearName and author
1852Onchosaurus Gervais p. 262
1853Onchosaurus Gervais p. 471
1887Gigantichthys Dames
1887Titanichthys Dames p. 70
1940Onchosaurus Arambourg
1963Gigantichthys Jordan p. 588
1963Onchosaurus Tabaste p. 472
1987Onchosaurus Cappetta p. 154
2002Onchosaurus Sepkoski
2004Onchosaurus Suárez and Cappetta
2011Onchosaurus Bourdon et al. p. 37
2012Onchosaurus Corral et al. p. 212

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
RankNameAuthor
classChondrichthyes
subclassEuselachii()
infraclassElasmobranchii(Bonaparte 1838)
—Batomorphi()
orderSclerorhynchiformesKriwet 2004
familySclerorhynchidae
genusOnchosaurus

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.

G. †Onchosaurus Gervais 1852
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Subg. †Onchosaurus (Onchosaurus) Gervais 1852
†Onchosaurus pharao Dames 1887
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Invalid names: Ischyrhiza iwakiensis Uyeno and Hasegawa 1986 [synonym]
†Onchosaurus radicalis Gervais 1852
Invalid names: Gigantichthys Dames 1887 [synonym], Titanichthys Dames 1887 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobilec
Life habit: nektonicc
Diet: carnivorec
Created: 2004-08-17 13:49:23
Modified: 2009-12-13 03:31:01
Source: c = class, subp = subphylum
References: Carroll 1988, Wagner 2023

Age range: base of the Early/Lower Turonian to the top of the Ypresian or 93.90000 to 48.07000 Ma

Collections (16 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Cretaceous100.5 - 66.0Niger (Zinder) O. pharao (75235 75239 75240 75255 75256)
Early/Lower Turonian93.9 - 89.8Nigeria Gigantichthys sp. (210108)
Late/Upper Coniacian89.8 - 85.7Spain (Burgos) O. radicalis (213731)
Early/Lower Santonian85.7 - 83.6France (Pays de la Loire) O. sp. (67998)
Early/Lower Santonian - Middle Santonian85.7 - 83.6USA (New Mexico) O. sp. (52037)
Santonian85.7 - 83.6Japan (Fukushima) Ischyrhiza iwakiensis (91414)
Early/Lower Campanian - Late/Upper Campanian83.6 - 72.2USA (Texas) O. sp. (91311)
Late/Upper Campanian83.6 - 72.2France O. radicalis (59676)
Middle Campanian83.6 - 72.2Egypt (Al Wadi al Jadid) O. sp. (54083)
Lancian72.2 - 66.0USA (Montana) O. avonicolus (14549)
Maastrichtian72.2 - 66.0Niger (Tahoua) O. pharao (48868)
Ypresian56.0 - 48.07France (Île-de-France) O. sp. (68437)