Sclerorhynchoidei

Sclerorhynchoidei, the sawskates, is an extinct suborder of cartilaginous fish that had long rostra with large denticles similar to sawfishes and sawsharks. This feature was just convergent evolution and their closest living relatives are actually skates.

Comparison between a longnose sawshark (top and left), a Sclerorhynchus (middle), and a largetooth sawfish (bottom and right)

The suborder contains five families, the Ganopristidae, Ischyrhizidae, Onchopristidae, Ptychotrygonidae, and Schizorhizidae. Some genera are not in any of these families.

Some genera

Onchopristis

Onchopristis is an extinct genus of giant sclerorhynchoid. Isolated rostral denticles are the most common fossils, but rostra, chondrocrania, jaws, oral teeth, vertebrae, and dermal denticles were also found.

Baharipristis

Baharipristis is an extinct genus of sawskate from the Cretaceous period.

Onchosaurus

Onchosaurus is an extinct genus of ganopristid sawskate.

Schizorhiza

Schizorhiza is an extinct genus of Cretaceous schizorhizid.

Onchopristis

Atlanticopristis

Atlanticopristis (meaning "Atlantic saw") is an extinct genus of Cretaceous ganopristid.

Related pages

• Balistoides
• Balistes

Life restoration of the ganopristid Atlanticopristis

References

1. Herman, J.; Van Waes, H. (2012). "Observations diverses et déductions concernant l'evolution et la systématique de quelques Euselachii, Neoselachii et Batoidei (Pisces - Elasmobranchii), actuels et fossiles"(PDF). Géominpal Belgica. 2 (1): 1–89. Archived from the original (PDF) on 2015-02-17.