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 eversa, Gryphaea gigantea, Gryphaea keilhaui, Gryphaea kenkerensis, Gryphaea mccullochi, Gryphaea mutabilis, Gryphaea navia, Gryphaea nevadensis, Gryphaea obliquata, Gryphaea orientalis, Gryphaea pitcherii, Gryphaea planoconvexa, Gryphaea plicata, Gryphaea stomatoidea, Gryphaea wardi

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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