A new lithophylacid crab (Crustacea, Decapoda, Portunoidea) from the Late Cretaceous (early Maastrichtian) of Cuba

Un nuevo cangrejo litofilácido (Crustacea, Decapoda, Portunoidea) del Cretácico Tardío (Maastrichtiano temprano) de Cuba

Francisco J. Vega¹,*, Carlos Rafael Borges-Sellén², Javier Aguilar-Pérez³, Alberto F. Arano-Ruiz²,

Lázaro W. Viñola-López⁴, Torrey Nyborg⁵

¹ Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, 04510, CDMX, Mexico.

² Sociedad Cubana de Geología, Cienfuegos, Cuba.

³ Facultad de Ciencias de la Tierra, Universidad Autónoma de Nuevo León, Carretera a Cerro Prieto Km 8, Ex-Hacienda de Guadalupe, 67700, Linares, Nuevo León, Mexico.

⁴ Florida Museum of Natural History, University of Florida, Gainesville, FL 32611-7800, Florida, United States of America.

⁵ Department of Earth and Biological Sciences, Loma Linda University, CA92350, Loma Linda, California,United States of America.

^* Corresponding author: (F. Vega) This email address is being protected from spambots. You need JavaScript enabled to view it.

How to cite this article:

Vega, F.J., Borges-Sellén, C.R., Aguilar-Pérez, J., Arano-Ruiz, A.F., Viñola-López, L. W., Nyborg, T., 2021, A new lithophylacid crab (Crustacea, Decapoda, Portunoidea) from the Late Cretaceous (early Maastrichtian) of Cuba: Boletín de la Sociedad Geológica Mexicana, 73 (1), A220620. http://dx.doi.org/10.18268/BSGM2021v73n1a220620

ABSTRACT

Icriobranchiocarcinus rodas Vega n. sp., is recorded from lower Maastrichtian (Upper Cretaceous) Arroyo Grande Formation near the town of Rodas (Central Cuba). I. rodas Vega n. sp. represents additional evidence of paleobiogeographic affinities between Chiapas (SE Mexico) and Cuba, during the Late Cretaceous. The genus Icriobranchiocarcinus Vega, 2018 in Vega et al., 2018 was erected from the type species Icriobranchiocarcinus tzutzu Vega, 2018 from the lower Maastrichtian Ocozocoautla Forma-tion (Chiapas). I. rodas Vega, n. sp. preserves details of ventral morphology as well as more details of chelipeds not reported in I. tzutzu, adding to the morphology of the genus. Icriobranchiocarcinus belong to a family (Lythophylacidae Van Straelen, 1936) that became extinct worldwide during the K/Pg event.

Keywords: Decapoda, Portunoidea, Icriocarcininae, early Maastrichtian, Cuba.