Pseudorogueus Fraaye, 1995

Van Bakel, Barry W. M., Guinot, Danièle, Artal, Pedro, Fraaije, René H. B. & Jagt, John W. M., 2012, A revision of the Palaeocorystoidea and the phylogeny of raninoidian crabs (Crustacea, Decapoda, Brachyura, Podotremata) 3215, Zootaxa 3215 (1), pp. 1-216 : 100-101

Genus Pseudorogueus Fraaye, 1995

Pseudorogueus Fraaye, 1995: 66 .

Type species. Pseudorogueus rangiferus Fraaye, 1995 , by original designation.

Material examined. Holotype, and only specimen so far known, a partly decorticated carapace ( MAB k. 1040). Locality and stratigraphy were not included in the original description; the specimen was recovered from a roadcutting along the road Ager-Tremp on Serra del Pi, 1 km northwest of the village of La Baronia, northern Spain, from the top of the Ei2 Member of the ‘Gresos deltaics’, of early Eocene age ( Rosell & Llompart 1988).

Remarks. Pseudorogueus rangiferus (see Fraaye 1995: 66, figs. 1, 2) should be included in the subfamily Raninoidinae . The frontal characters do not match those of Rogueus Berglund & Feldmann, 1989 , or any other member of Lyreididae for that matter. According to Tucker (1998: 359) ‘the specimen described by Fraaye (1995) is more closely related to the Raninoidinae clade, not the Lyreidinae which includes Rogueus ’. Pseudorogueus was synonymised with Raninoides by Tucker (1998: 359), but considered valid by Nyborg & Fam (2008: 689), the latter decision we agree with. The wide carapace and strong anterolateral spine with multiple anteriorly directed spinules warrant generic separation of Pseudorogueus and Raninoides .