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New U nionida ( B ivalvia) from the K immeridgian ( L ate J urassic) of A sturias, S pain, and their palaeobiogeographical implications
Author(s) -
Delvene Graciela,
Munt Martin C.,
Piñuela Laura,
GarcíaRamos José C.
Publication year - 2016
Publication title -
papers in palaeontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.827
H-Index - 15
ISSN - 2056-2802
DOI - 10.1002/spp2.1039
Subject(s) - taxon , biology , ecology
Abstract This study focuses on new records of freshwater bivalves from the L ate J urassic V ega, T ereñes and L astres formations of A sturias, northern S pain. Five new taxa M ujanaia abeuensis gen. et sp. nov., ‘ U nio ’ asturianus sp. nov., M argaritifera ? lagriega sp. nov., A sturianaia colunghensis gen. et sp. nov. and A sturianaia lastrensis gen. et sp. nov. are described and included in the families U nionidae and M argaritiferidae ( U nionida); they are compared and contrasted with other E uropean, A siatic and N orth A merican species. Their discovery constitutes the oldest records of U nionida in S pain, and they provide new palaeogeographical data on the distribution and origin of this group in E urope. These taxa are also an effective tool for the environmental reconstruction of the J urassic ecosystems of S pain's D inosaur C oast.