''Galeorhinus'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

houndshark The Triakidae or houndsharks are a family of ground sharks, consisting of about 40 species in nine genera. In some classifications, the family is split into two subfamilies, with the genera ''Mustelus'', '' Scylliogaleus'' and '' Triakis'' in t ...

containing one extant species, the widespread but highly threatened

school shark The school shark (''Galeorhinus galeus'') is a houndshark of the family Triakidae, and the only living member of the genus '' Galeorhinus''. Common names also include tope, tope shark, snapper shark, and soupfin shark. It is found worldwide in t ...

(''G. galeus''), and several extinct species dating back to the

Late Cretaceous The Late Cretaceous (100.5–66 Ma) is the more recent of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''cre ...

(

Cenomanian The Cenomanian is, in the International Commission on Stratigraphy's (ICS) geological timescale, the oldest or earliest age (geology), age of the Late Cretaceous epoch (geology), Epoch or the lowest stage (stratigraphy), stage of the Upper Cretace ...

). The majority of extinct species are known only from fossil teeth, but the

Early Eocene In the geologic timescale the Ypresian is the oldest age (geology), age or lowest stage (stratigraphy), stratigraphic stage of the Eocene. It spans the time between , is preceded by the Thanetian Age (part of the Paleocene) and is followed by th ...

-aged species '' G. cuvieri'' is known from extremely well-preserved full-body specimens from

Monte Bolca Monte Bolca is an Ypresian, Early Eocene-aged geologic site located near Verona, Italy, Verona, Italy. A ''Konservat-Lagerstätte'', it contains an extremely well-preserved and diverse marine biota, including the most diverse fish fauna of any Ce ...

, Italy. The oldest known species is '' G. glickmani'' from the Cenomanian of Russia.

Species

Extant

* ''

Galeorhinus galeus The school shark (''Galeorhinus galeus'') is a houndshark of the family Triakidae, and the only living member of the genus '' Galeorhinus''. Common names also include tope, tope shark, snapper shark, and soupfin shark. It is found worldwide in t ...

'' (

Linnaeus Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...

, 1758) -

Extinct

Based on the Shark-References database: * †'' Galeorhinus cuvieri'' (

Agassiz Jean Louis Rodolphe Agassiz ( ; ) FRS (For) FRSE (May 28, 1807 – December 14, 1873) was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history. Spending his early life in Switzerland, he recei ...

, 1835) (sometimes placed in '' Physogaleus'', but more recently refuted) * †'' Galeorhinus duchaussoisi'' Adnet & Cappeta, 2008 * †'' Galeorhinus girardoti'' Herman, 1977 * †'' Galeorhinus glickmani'' Popov & Lapkin, 2000 * †'' Galeorhinus loangoensis'' Darteville & Casier, 1946 * †'' Galeorhinus louisi'' Adnet & Cappetta, 2008 * †'' Galeorhinus mesetaensis'' Noubhani & Cappetta, 1997 * †'' Galeorhinus minutissimus'' ( Arambourg, 1935) * †'' Galeorhinus muelleri'' ( Jaekel, 1898) * †'' Galeorhinus parvulus'' Darteville & Casier, 1943 * †'' Galeorhinus tenius'' Averianov & Udovitshenko, 1993 * †'' Galeorhinus ypresiensis'' (Casier, 1946)

References

Triakidae Taxa named by Henri Marie Ducrotay de Blainville Shark genera {{Taxonbar, from=Q608028 Fish genera with one living species Extant Cenomanian first appearances