''Ranina'' 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 ...

crab Crabs are decapod crustaceans of the infraorder Brachyura (meaning "short tailed" in Greek language, Greek), which typically have a very short projecting tail-like abdomen#Arthropoda, abdomen, usually hidden entirely under the Thorax (arthropo ...

s belonging to the family

Raninidae Raninidae is a family of unusual crabs, sometimes known as "frog crabs", on account of their frog-like appearance. They are taken by most scientists to be quite primitive among the true crabs. They closely resemble the (unrelated) mole crabs, ...

. It has two extant species.

Distribution

Fossils of these crabs have been found in the sediments of United States, Mexico, Spain, Italy, Turkey and Australia from the

Paleogene The Paleogene Period ( ; also spelled Palaeogene or Palæogene) is a geologic period and system that spans 43 million years from the end of the Cretaceous Period Ma (million years ago) to the beginning of the Neogene Period Ma. It is the fir ...

period to Recent (age range: 48.6 to 0.0 Ma). Fossilworks
/ref>

Species

Species within this genus include:Catalogue of life
/ref> *† '' Ranina americana'' Withers, 1924 *† '' Ranina berglundi'' Squires and Demetrion, 1992 * '' Ranina bouilleana'' Milne-Edwards, 1872 *† '' Ranina brevispina'' Lorenthey, 1898 *† '' Ranina burleighensis'' Holland and Cvancara, 1958 *† '' Ranina cuspidata'' Guppy, 1909 *† ''

Ranina elegans ''Ranina'' is a genus of crabs belonging to the family Raninidae. It has two extant species. Distribution Fossils of these crabs have been found in the sediments of United States, Mexico, Spain, Italy, Turkey and Australia from the Paleogene ...

'' Rathbun, 1945 *† '' Ranina granulosa'' Milne-Edwards, 1872 *† '' Ranina haszlinskyi'' Reuss, 1859 *† ''

Ranina hirsuta ''Ranina'' is a genus of crabs belonging to the family Raninidae. It has two extant species. Distribution Fossils of these crabs have been found in the sediments of United States, Mexico, Spain, Italy, Turkey and Australia from the Paleogene ...

'' Schafhautl, 1863 *† '' Ranina lamiensis'' Rathbun, 1945 *† ''

Ranina molengraaffi ''Ranina'' is a genus of crabs belonging to the family Raninidae. It has two extant species. Distribution Fossils of these crabs have been found in the sediments of United States, Mexico, Spain, Italy, Turkey and Australia from the Paleogene ...

'' Van Straelen, 1924 *† '' Ranina oblonga'' Munster, 1840 *† '' Ranina palmea'' Sismonda, 1846 *† '' Ranina porifera'' Woodward, 1866 *† ''

Ranina propinqua ''Ranina'' is a genus of crabs belonging to the family Raninidae. It has two extant species. Distribution Fossils of these crabs have been found in the sediments of United States, Mexico, Spain, Italy, Turkey and Australia from the Paleogene ...

'' Ristori, 1891 *† ''

Ranina quinquespinosa ''Ranina'' is a genus of crabs belonging to the family Raninidae. It has two extant species. Distribution Fossils of these crabs have been found in the sediments of United States, Mexico, Spain, Italy, Turkey and Australia from the Paleogene ...

'' Rathbun, 1945 * ''

Ranina ranina ''Ranina ranina'', also known as the Huỳnh Đế crab, (red) frog crab or spanner crab, is a species of crab found throughout tropical and subtropical habitats. It is often fished for its meat. Description It may grow up to long, and may wei ...

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 Events January–March * January 1 – Swedish biologist Carl Linnaeus (Carl von Linné) publishes in Stockholm the first volume (''Animalia'') of the 10th edition of ''Systema Naturae'', the starting point of modern zoologic ...

(the only extant species) *† ''

Ranina speciosa ''Ranina'' is a genus of crabs belonging to the family Raninidae. It has two extant species. Distribution Fossils of these crabs have been found in the sediments of United States, Mexico, Spain, Italy, Turkey and Australia from the Paleogene ...

'' Munster, 1840 *† ''

Ranina tejoniana ''Ranina'' is a genus of crabs belonging to the family Raninidae. It has two extant species. Distribution Fossils of these crabs have been found in the sediments of United States, Mexico, Spain, Italy, Turkey and Australia from the Paleogene ...

'' Rathbun, 1926

References

{{Taxonbar, from1=Q17979295, from2=Q2367358 Crabs Paleogene genus first appearances Extant Paleogene first appearances Taxa named by Jean-Baptiste Lamarck Taxa described in 1801