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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, Jr.
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()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
RankNameAuthor
Reptiliomorpha
Anthracosauria
Batrachosauria()
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.

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 (9 total)


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