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Saurosphargidae

Reptilia - Saurosphargidae

Synonyms
Synonymy list
YearName and author
1903Saurosphargis Frech
1936Saurosphargis volzi Huene
1971Saurosphargis Kuhn p. 21
1971Saurosphargis volzi Kuhn p. 21
1988Saurosphargis Carroll
2002Saurosphargis Sepkoski
2011Saurosphargidae Li et al. p. 303
2011Saurosphargis Li et al. p. 303
2013Saurosphargidae Li et al.
2013Saurosphargis Li et al.

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

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.

Fm. †Saurosphargidae Li et al. 2011
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G. †Hemilopas Meyer 1834
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Hemilopas mentzeli Meyer 1847
G. †Largocephalosaurus Cheng et al. 2012
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Largocephalosaurus polycarpon Cheng et al. 2012
Largocephalosaurus qianensis Li et al. 2013
G. †Prosaurosphargis Wolniewicz et al. 2023
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Prosaurosphargis yingzishanensis Wolniewicz et al. 2023
G. †Sinosaurosphargis Li et al. 2011
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Invalid names: Saurosphargis Frech 1903 [nomen dubium]
Diagnosis
ReferenceDiagnosis
C. Li et al. 2013Aquatic diapsids characterized by the following combination of apomorphies: (1) dorsal ribs forming a closed basket; (2) presence of dorsal osteoderms; (3) external naris retracted, much closer to orbit than rostral tip; (4) median elements of gastral ribs often with a two-pronged lateral process on one side; (5) lateral most elements of gastral ribs broadened and contacting each other; (6) supratemporal extensively contacting quadrate shaft; (7) posterior margin of skull roof deeply emarginated; (8) jugal–squamosal contact; (9) presence of ectopterygoid; (10) presence of interpterygoid vacuity and open braincasepalatal articulation; (11) leaf-shaped tooth crown with convex labial surface and concave lingual surface; (12) dorsal vertebrae with elongate transverse process and a very low neural spine; (13) tip of neural spines table-like, covered by osteoderm(s); (14) large interclavicle boomerang-like or atypical T-shaped, with a small and sharp posterior process; (15) humerus not expanded at both ends; (16) nine carpals; and (17) four tarsals.
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 Spathian to the top of the Anisian or 251.30000 to 242.00000 Ma

Collections (10 total)


Time interval Ma Country or state Original ID and collection number
Spathian251.3 - 247.2China (Hubei) Prosaurosphargis yingzishanensis (231320)
Spathian251.3 - 247.2Poland (Upper Silesia) Hemilopas mentzeli (195612)
Anisian247.2 - 242.0Poland (Opolskie) Hemilopas mentzeli (96435)
Anisian247.2 - 242.0Poland Hemilopas mentzeli (63538 138068)
Anisian247.2 - 242.0Poland (Upper Silesia) Hemilopas mentzeli (195613)
Pelsonian247.2 - 242.0China (Guizhou) Largocephalosaurus qianensis (88049) Sinosaurosphargis yunguiensis (103539)
Pelsonian247.2 - 242.0China (Yunnan) Largocephalosaurus polycarpon (123839) Sinosaurosphargis yunguiensis (110023)