Original paper

New species, genera and a family of hermit crabs (Crustacea, Anomura, Paguroidea) from a mid-Cretaceous reef of Navarra, northern Spain

Fraaije, René H.B.; Klompmaker, Adiël A.; Artal, Pedro

Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen Band 263 Heft 1 (2012), p. 85 - 92

published: Jan 1, 2012

DOI: 10.1127/0077-7749/2012/0213

BibTeX file

ArtNo. ESP155026301010, Price: 29.00 €

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Abstract

Two new paguroids, Cretatrizocheles olazagutiensis n. gen., n. sp. and Mesoparapylocheles michaeljacksoni n. gen., n. sp., both based on carapaces, are described and added to the very diverse mid-Cretaceous (Albian-Cenomanian) decapod crustacean fauna of the reefal deposits near Alsasua (Navarra, northern Spain). The description of Annuntidiogenes worfi is emended on the basis of a newly discovered, much more complete carapace. Mesoparapylocheles n. gen. is a member of the Parapylochelidae n. fam., whereas Cretatrizocheles n. gen. is a member of the Trizochelinae. These species show that the linea transversalis, introduced by neontologists for a groove lateral and/or posterior to the cervical groove, is an evolved part of the branchiocardiac groove.

Keywords

paguroidea • parapylochelidae n. fam • pylochelidae • diogenidae • albian-cenomanian • cretaceous • spain