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Saurosphargidae
Taxonomy
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1903 | Saurosphargis Frech |
| 1936 | Saurosphargis volzi Huene |
| 1971 | Saurosphargis Kuhn p. 21 |
| 1971 | Saurosphargis volzi Kuhn p. 21 |
| 1988 | Saurosphargis Carroll |
| 2002 | Saurosphargis Sepkoski |
| 2011 | Saurosphargidae Li et al. p. 303 |
| 2011 | Saurosphargis Li et al. p. 303 |
| 2013 | Saurosphargidae Li et al. |
| 2013 | Saurosphargis Li et al. |
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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. †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
Invalid names: Saurosphargis Frech 1903 [nomen dubium]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. Li et al. 2013 | Aquatic 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
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Carroll 1988 | |||||
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Spathian | China (Hubei) | Prosaurosphargis yingzishanensis (231320) | |
| Spathian | Poland (Upper Silesia) | Hemilopas mentzeli (195612) | |
| Anisian | Poland (Upper Silesia) | Hemilopas mentzeli (195613) | |
| Anisian | Poland | Hemilopas mentzeli (63538 138068) | |
| Anisian | Poland (Opolskie) | Hemilopas mentzeli (96435) | |
| Pelsonian | China (Yunnan) | Largocephalosaurus polycarpon (123839) Sinosaurosphargis yunguiensis (110023) | |
| Pelsonian | China (Guizhou) | Largocephalosaurus qianensis (88049) Sinosaurosphargis yunguiensis (103539) |