A proposal for a new family: Montezumellidae (Crustacea, Decapoda, Brachyura) and description of new genus and species Moianella cervantesi from the Priabonian (late Eocene) of Catalonia (NE of Iberian Peninsula)

Resumen

A new brachyuran family
is proposed in order to accommodate Montezumella Rathbun, 1930,
previously assigned to Cheiragonidae Ortmann, 1893. The
establishment of Montezumellidae n. fam. is based on the examination
of several samples of both sexes of Montezumella, with
well-preserved thoracic and abdominal structures. A new genus and
species, Moianella cervantesi n. gen., n. sp. from the Priabonian
(late Eocene) transitional levels of central Catalonia (NE of
Iberian Peninsula) is described herein and assigned to the new
family. The taxonomic placement of Montezumellidae n. fam. is
discussed. Furthermore, “Atelecyclus” gorodiskii Rémy, 1959 in
Gorodiski and Rémy, 1959, considered as atelecyclid, is herein
attributed with reserve into the new family.