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Somniosidae (sleeper shark)
Taxonomy
Somniosidae was named by Jordan (1888). It is extant.
It was reranked as the subfamily Somniosinae by Müller and Diedrich (1991).
It was assigned to Squaloidea by Hay (1902); to Squaloidei by Jordan (1963); to Squalidae by Müller and Diedrich (1991); and to Squaliformes by Cahuzac et al. (2007), Mannering and Hiller (2008), Underwood and Schlogl (2013), Nelson et al. (2016), Welton and Goedert (2016) and Feichtinger et al. (2024).
It was reranked as the subfamily Somniosinae by Müller and Diedrich (1991).
It was assigned to Squaloidea by Hay (1902); to Squaloidei by Jordan (1963); to Squalidae by Müller and Diedrich (1991); and to Squaliformes by Cahuzac et al. (2007), Mannering and Hiller (2008), Underwood and Schlogl (2013), Nelson et al. (2016), Welton and Goedert (2016) and Feichtinger et al. (2024).
Synonymy list
| Year | Name and author |
|---|---|
| 1888 | Somniosidae Jordan |
| 1902 | Somniosidae Hay p. 314 |
| 1963 | Somniosidae Jordan p. 602 |
| 1991 | Somniosinae Müller and Diedrich p. 19 |
| 2007 | Somniosidae Cahuzac et al. p. 12 |
| 2008 | Somniosidae Mannering and Hiller |
| 2013 | Somniosidae Underwood and Schlogl p. 501 |
| 2016 | Somniosidae Nelson et al. p. 76 |
| 2016 | Somniosidae Welton and Goedert p. 311 |
| 2024 | Somniosidae Feichtinger et al. p. 374 |
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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. Somniosidae Jordan 1888 [sleeper shark]
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G. Centroscymnus Barbosa du Bocage and Brito Capello 1864
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†Centroscymnus praecursor Muller and Schollmann 1989
†Centroscymnus schmidi Herman 1982
G. Centroselachus Garman 1913
G. †Cretascymnus Cappetta 1980
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†Cretascymnus beauryi Feichtinger et al. 2022
†Cretascymnus westfalicus Muller and Schollmann 1989
G. †Heteroscymnus Tanaka 1912
G. †Laemargus Müller and Henle 1838
G. †Leiodon Wood 1847
G. †Protoxynotus Herman 1975
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†Protoxynotus mayrmelnhofi Feichtinger et al. 2022
†Protoxynotus misburgensis Herman 1975
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Invalid names: Palaeomicroides ursulae Thies and Müller 1993 [synonym]
Invalid names: Paraphorosoides Kriwet et al. 2006 [synonym]
G. †Rhinoscymnus Gill 1864
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†Rhinoscymnus clarki Cappetta et al. 2019
†Rhinoscymnus viridiadamas Welton and Goedert 2016
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Carroll 1988, Wagner 2023, Hendy et al. 2009 | |||||
Age range
Maximum range based only on fossils: base of the Early/Lower Hauterivian to the top of the Zanclean or 136.40000 to 3.60000 Ma
Minimum age of oldest fossil (stem group age): 130.0 Ma
Minimum age of oldest fossil (stem group age): 130.0 Ma
Collections (40 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Hauterivian | Germany | Centroscymnus sp. (91586) | |
| Cenomanian | Germany (Westphalia) | Somniosinae indet. (210063) | |
| Late/Upper Turonian | Germany | Protoxynotus misburgensis (228230) | |
| Late/Upper Santonian | Lebanon | Cretascymnus adonis (92241) Protoxynotus misburgensis (233310) | |
| Early/Lower Campanian | Germany (Nordrhein-Westfalen) | Cretascymnus sp., Somniosidae indet., Cretascymnus westfalicus, Centroscymnus praecursor (101702) | |
| Early/Lower Campanian | Germany (Niedersachsen) | Centroscymnus praecursor (31992) | |
| Early/Lower Campanian | Germany | Palaeomicroides ursulae, Centroscymnus praecursor (228234) Palaeomicroides ursulae, Cretascymnus westfalicus, Centroscymnus praecursor (228233) Protoxynotus misburgensis (228231) | |
| Late/Upper Campanian | Canada (British Columbia) | Centroscymnus sp. (221571) Centroscymnus sp., Rhinoscymnus clarki (221572) | |
| Late/Upper Campanian | Germany (Nordrhein-Westfalen) | Cretascymnus westfalicus, Centroscymnus praecursor (101701) | |
| Late/Upper Campanian | Israel | Cretascymnus sp., Centroscymnus sp. (35443) | |
| Early/Lower Maastrichtian | Sweden | Centroscymnus schmidi (214353) | |
| Late/Upper Maastrichtian | Sweden | Centroscymnus schmidi (214328) | |
| Late/Upper Maastrichtian | Austria | Cretascymnus beauryi (228907 228908 228909 228910 228911 228912) Protoxynotus mayrmelnhofi, Cretascymnus beauryi (228232) Protoxynotus sp. (233355 233356) Protoxynotus sp., Centroscymnus sp. (233352 233354) | |
| Danian | Austria | Somniosidae indet. (233361) | |
| Selandian - Thanetian | New Zealand | Centroselachus goordi (90579 90580 90581 90584) | |
| Lutetian - Bartonian | France (Landes) | Scymnodalatias cigalafulgosii (161753) | |
| Priabonian | Barbados | Centroscymnus sp. (205153) | |
| Priabonian - Rupelian | USA (Washington) | Rhinoscymnus viridadamas (199540) | |
| Rupelian | USA (Washington) | Somniosus gonzalezi (58964) | |
| Chattian | USA (Washington) | Rhinoscymnus viridiadamas (199731) Somniosus gonzalezi (45809) | |
| Burdigalian | Slovakia | Somniosidae indet. (161901) | |
| Zanclean | Italy | Scymnodalatias garricki (206310) |