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New decapod crustaceans (Anomura, Brachyura) from mid-Cretaceous reefal deposits at Monte Orobe (Navarra, northern Spain), and comments on related type-Maastrichtian material
Fraaije, R.H.B.; van Bakel, B.W.M.; Jagt, J.W.M.; Artal, P. (2008). New decapod crustaceans (Anomura, Brachyura) from mid-Cretaceous reefal deposits at Monte Orobe (Navarra, northern Spain), and comments on related type-Maastrichtian material. Bull. Kon. Belg. Inst. Natuurwet. Aardwet. = Bull. - Inst. r. sci. nat. Belg., Sci. Terre 78: 193-208
In: Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen. Aardwetenschappen = Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Sciences de la Terre. KBIN: Brussel. ISSN 0374-6291, more
Peer reviewed article  

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Keywords
Author keywords
    Crustacea, Anomura, Brachyura, Albian, Spain, new taxa

Authors  Top 
  • Fraaije, R.H.B.
  • van Bakel, B.W.M.
  • Jagt, J.W.M.
  • Artal, P.

Abstract
    From the well-known upper Albian to lower Cenomanian (mid- Cretaceous) reefal limestones (Albeniz Unit) at Monte Orobe, northwest of Alsasua (Navarra, northern Spain), one new genus and species each of diogenid and porcellanid anomurans and one new genus of etyid brachyuran are described, on the basis of material contained in the VAN STRAELEN Collection at the Institut royal des Sciences naturelles de Belgique, Brussels. Annuntidiogenes Ruizdegaonai n. gen., n. sp., which is closely related to the extant diogenid genus Aniculus DANA, 1852, represents the first paguroid carapace of Cretaceous age to be described and formally named. It compares well with an even better-preserved specimen from the Kunrade Limestone facies (Maastricht Formation; upper Maastrichtian) in southern Limburg, The Netherlands, here named Annuntidiogenes sunuciorum n. gen., n. sp. Annieporcellana dhondtae n. gen., n. sp. constitutes the oldest known member of the family Porcellanidae HAWORTH, 1825. Glyptodynomene inornata COLLINS, FRAAYE & JAGT, 1995 from the upper Maastrichtian of Maastricht (The Netherlands), originally interpreted as a dynomenid, is transferred to the Porcellanidae and reassigned to the genus Petrolisthes STIMPSON, 1858. The etyid crab Xanthosia fossa WRIGHT & COLLINS, 1972 is recorded for the first time from northern Spain. A new genus, Etyxanthosia n. gen., is erected to accommodate this, plus three North American species, X. aspera RATHBUN, 1935, X. pawpawensis SCHWEITZER HOPKINS, SALVA & FELDMANN, 1999 and X. reidi SCHWEITZER HOPKINS, SALVA & FELDMANN, 1999, all of late Albian age. A close phylogenetic relationship between E. fossa and the genera Glyptodynomene VAN STRAELEN, 1944 and Paranecrocarcinus VAN STRAELEN, 1936 is demonstrated. The two last-named are assigned to a new subfamily, Paranecrocarcininae n. subfam., which is characterized by enigmatic post-rostral slits.

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