The systematics of the fossil representatives of Ranina Lamark, 1810, has been discussed by several authors in the last century, showing some problematics above all due to the lack of a close diagnosis of the type species (<em>R. ranina</em>) and to the scarce number of well-preserved type series of each fossil species. However, based upon a close comparison among the type series of each species, authors’ original descriptions, and the main diagnostic characters of <em>Ranina</em>, this preliminary review finds that twelve species have to be considered as doubtful species within <em>Ranina</em>, as follows: <em>?Ranina americana</em> Withers, 1924, <em>?R. berglundi</em> Squires & Demetrion, 1992,<em> ?R. bouilleana</em> A. Milne Edwards, 1872, <em>?R. brevispina</em> Lőrenthey, 1898,<em> ?R. granulosa</em> A. Milne Edwards, 1872, <em>?R. griesbachi</em> Noetling, 1897, <em>?R. haszlinskyi</em> Reuss, 1859, <em>?R. libyca</em> (Van Straelen, 1935),<em> ?R.</em> <em>molengraaffi</em> Van Straelen, 1924,<em> ?R. oblonga</em> (von Münster, 1840), <em>?R. ornata</em> De Angeli & Beschin, 2011, and<em> ?R. speciosa</em> (von Münster, 1840). Four species have to be considered as <em>Ranina nomina dubia</em>, as follows: <em>Ranina elegans</em> Rathbun, 1945, <em>R. hirsuta</em> (Schafhäutl, 1863), <em>R. lamiensis</em> Rathbun, 1945, and<em> R. tejoniana</em> Rathbun, 1926. <em>Ranina</em> <em>bavarica</em> Ebert, 1887,<em> R. fabri</em> Schafhäutl, 1863, and<em> R. helii</em> Schafhäutl, 1863, have to be assigned to Lophoranina Fabiani, 1910. <em>Ranina</em> <em>cuspidata</em> Guppy, 1909, has to be assigned to Calappa Weber, 1795 (Calappidae De Haan, 1833). Finally,<em> R. burleighensis</em> Holland in Holland & Cvancara, 1958, has to be considered as doubtful species within Decapoda.