BOLETÍN DE LA SOCIEDAD GEOLÓGICA MEXICANA Vol 66, Núm. 1, 2014, P. 215-221 http://dx.doi.org/10.18268/BSGM2014v66n1a15

Exceptional preservation of a late Cenomanian (Late Cretaceous) crab from Texas, U.S.A.

Francisco J. Vega^1,*, John Jackson², Àlex Ossó³

¹ Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Del. Coyoacán, 04510, México, D. F., Mexico.
² P.O. Box 295, Granger, Texas 76530, USA.
³ Josep Vicenç Foix, 12-H, 1er-1ª 43007 Tarragona, Catalonia.

^* This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

One specimen of the brachyuran (Etyoidea: Feldmanniidae) Caloxanthus americanusfrom 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.