A revision of the Palaeocorystoidea and the phylogeny of raninoidian crabs (Crustacea, Decapoda, Brachyura, Podotremata) 3215 Author Van Bakel, Barry W. M. Author Guinot, Danièle Author Artal, Pedro Author Fraaije, René H. B. Author Jagt, John W. M. text Zootaxa 2012 2012-02-29 3215 1 1 216 https://biotaxa.org/Zootaxa/article/view/zootaxa.3215.1.1 journal article 10.11646/zootaxa.3215.1.1 1175­5334 5248640 B20CD4A6-D150-4CCF-931F-ED6D7EA54E8C Genus Campylostoma Bell, 1858 Campylostoma Bell, 1858: 23 . Type species. Campylostoma matutiforme Bell, 1858 , by monotypy. Remarks. The genus was tentatively included in Cenomanocarcinidae by Guinot et al . (2008: 20) . Material examined here corroborates this assignment; Campylostoma represents the youngest (Paleogene, Cenozoic) member of the family.