Ranina

Ranina is a genus of crabs belonging to the family Raninidae.

Ranina ranina is the only extant species. All the others are extinct.

Fossils of these crabs have been found in the sediments of United States, Mexico, Spain, Italy, Turkey and Australia from the Paleogene period to Recent (age range: 48.6 to 0.0 Ma).

Species
Species within this genus include:
 * † 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 Rathbun, 1945
 * † Ranina granulosa Milne-Edwards, 1872
 * † Ranina haszlinskyi Reuss, 1859
 * † Ranina hirsuta Schafhautl, 1863
 * † Ranina lamiensis Rathbun, 1945
 * † Ranina molengraaffi Van Straelen, 1924
 * † Ranina oblonga Munster, 1840
 * † Ranina palmea Sismonda, 1846
 * † Ranina porifera Woodward, 1866
 * † Ranina propinqua Ristori, 1891
 * † Ranina quinquespinosa Rathbun, 1945
 * Ranina ranina Linnaeus, 1758 (the only extant species)
 * † Ranina speciosa Munster, 1840
 * † Ranina tejoniana Rathbun, 1926