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New Trigonioidoidea (Bivalvia; Unionoida) from the Early Cretaceous of Spain
Author(s) -
DELVENE GRACIELA,
MUNT MARTIN
Publication year - 2011
Publication title -
palaeontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.69
H-Index - 63
eISSN - 1475-4983
pISSN - 0031-0239
DOI - 10.1111/j.1475-4983.2011.01052.x
Subject(s) - aptian , cretaceous , paleontology , brackish water , geology , stratigraphy , taxon , structural basin , range (aeronautics) , bivalvia , oceanography , mollusca , materials science , salinity , composite material , tectonics
Two taxa belonging to the Trigonioidoidea (Order Unionoida) are described from the Early Cretaceous of Spain. Nippononaia ( Paranippononaia ) camerana subgen. et sp. nov. is described from the Aptian of the Cameros Basin of the north‐west Iberian Range. Subnippononaia fordi Barker et al ., 1997 is described from new material from the Calizas de la Huérguina Formation (Late Barremian) from Las Hoyas and Buenache de la Sierra, Cuenca Province, and Subnippononaia is raised to generic status. The stratigraphy and palaeoenvironment of the Cornago G exposure of the Enciso Group where Nippononaia ( Paranippononaia ) camerana originates is interpreted as a fresh to brackish water system.