Abstract

VEGA, Francisco J.; JACKSON, John  and  OSSO, Àlex. Exceptional preservation of a late Cenomanian (Late Cretaceous) crab from Texas, U.S.A.. Bol. Soc. Geol. Mex [online]. 2014, vol.66, n.1, pp.215-221. ISSN 1405-3322.

One specimen of the brachyuran (Etyoidea: Feldmanniidae) Caloxanthus americanus from the Cenomanian Grayson Formation in Texas (U.S.A.) is here reported. The specimen includes morphological details not previously described for this species. In particular, the preservation of the eye structure is remarkable and it represents one of the few records of composite eye preservation in fossil brachyurans.

Keywords : Caloxanthus; Cenomanian; composite eye; Crustacea; Exceptional preservation; eye; Grayson formation; Waco; Texas.