Gryphaea arcta Braun 1841 (oyster)

Bivalvia - Ostreida - Gryphaeidae

Full reference: C. F. Braun. 1841. Taxonomic names, in Beiträge zur Geognosie und Petrefacten-Kunde des südöstlichen Tirols vorzüglich der Schichten von St. Cassian. Beiträge zur Petrefacten-Kunde 4:1-152

Belongs to Gryphaea according to C. F. Braun 1841

Sister taxa: Gryphaea (Africogryphaea), Gryphaea (Bilobissa), Gryphaea (Catinula), Gryphaea (Gryphaea), Gryphaea accipiter, Gryphaea arcuata, Gryphaea arcuataeformis, Gryphaea avicularis, Gryphaea balli, Gryphaea bilobata, Gryphaea brongniarti, Gryphaea colombiana, Gryphaea costellata, Gryphaea cymbium, Gryphaea distorta, Gryphaea gigantea, Gryphaea kenkerensis, Gryphaea mccullochi, Gryphaea mutabilis, Gryphaea nevadensis, Gryphaea obliquata, Gryphaea orientalis, Gryphaea planoconvexa, Gryphaea stomatoidea

Type specimen: Its type locality is St. Cassian (Munster coll), which is in a Julian carbonate limestone in the Cassian Formation of Italy.

Ecology: stationary epifaunal suspension feeder

Distribution: found only at St. Cassian (Munster coll)

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