Biology:Sclerorhynchidae

Short description: Extinct family of cartilaginous fishes

Sclerorhynchids Temporal range: Albian to Eocene, 130.0–48.6 Ma PreЄ Є O S D C P T J K Pg N
Libanopristis hiram
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Clade:	Neoselachii
Superorder:	Batoidea
Order:	Rajiformes
Suborder:	†Sclerorhynchoidei
Family:	†Sclerorhynchidae Cappetta, 1974
Genera
See text.

Sclerorhynchidae is an extinct family of cartilaginous fish from the Cretaceous and Paleogene belonging to the order Rajiformes, which also contains extant skates.

Despite their close appearance to extant sawfish (Pristidae), the two are not closely related, with sawfish being instead grouped with guitarfish in the order Rhinopristiformes. The genera Ischyrhiza, Onchopristis, and Schizorhiza were formerly considered members of this group, but evidence indicates that they form an unnamed sister group to Rajidae and are distinct from Sclerorhynchidae.

Genera

• †Agaleorhynchus
• †Ankistrorhynchus
• †Atlanticopristis
• †Baharipristis
• †Biropristis
• †Borodinopristis
• †Celtipristis
• †Ctenopristis
• †Ganopristis
• †Kiestus
• †Libanopristis
• †Marckgrafia
• †Micropristis
• †Onchosaurus
• †Plicatopristis
• †Pucapristis
• †Renpetia
• †Sclerorhynchus

Sources

• The Paleobiology Database accessed on 8/21/09

Villalobos‐Segura, Eduardo; Underwood, Charlie J.; Ward, David J. (2021). "The first skeletal record of the enigmatic Cretaceous sawfish genus Ptychotrygon (Chondrichthyes, Batoidea) from the Turonian of Morocco" (in en). Papers in Palaeontology 7: 353–376. doi:10.1002/spp2.1287. ISSN 2056-2802. https://onlinelibrary.wiley.com/doi/abs/10.1002/spp2.1287. 

Villalobos-Segura, Eduardo; Underwood, Charlie J.; Ward, David J.; Claeson, Kerin M. (2019-11-02). "The first three-dimensional fossils of Cretaceous sclerorhynchid sawfish: Asflapristis cristadentis gen. et sp. nov., and implications for the phylogenetic relations of the Sclerorhynchoidei (Chondrichthyes)". Journal of Systematic Palaeontology 17 (21): 1847–1870. doi:10.1080/14772019.2019.1578832. ISSN 1477-2019. https://doi.org/10.1080/14772019.2019.1578832. 

Bibliography

• H. Cappetta. 1974. Sclerorhynchidae nov. fam. Pristidae et Pristiophoridae: un exemple de parallelisme chez Selaciens. Comptes rendus de Academie de Sciences Paris Serie D 278:225-228
• H. Cappetta. 1980. Les selaciens du Cretace superieur du Liban. II: Batoides. Palaeontolographica Abt. A 168(5-6):149-229
• J. Kriwet, E. V. Nunn, and S. Klug. 2009. Neoselachians (Chondrichthyes, Elasmobranchii) from the Lower and lower Upper Cretaceous of north-eastern Spain. Zoological Journal of the Linnean Society 155(2):316-347

Wikidata ☰ Q7434188 entry