Trachycardium (Trachycardium) vaquerosensis Arnold 1908 (cockle)

Bivalvia - Cardiida - Cardiidae

Alternative combinations: Cardium (Trachycardium) vaquerosensis, Cardium vaqueroense, Cardium vaqueroensis, Trachycardium vaquerosense

Full reference: R. Arnold. 1908. Descriptions of new Cretaceous and Tertiary fossils from the Santa Cruz Mountains, California. Proceedings of the United States National Museum 34(1617):345-389

Belongs to Trachycardium (Trachycardium) according to E. J. Moore 2002

See also Adegoke 1969, Anderson 1911, Arnold 1908 and Kellogg 1932

Sister taxa: Trachycardium (Trachycardium) brantlyi, Trachycardium (Trachycardium) consors, Trachycardium (Trachycardium) isocardia, Trachycardium (Trachycardium) pessoae, Trachycardium (Trachycardium) schencki, Trachycardium (Trachycardium) woodringi

Type specimen: USNM 165457, a valve (imperfect right valve)

Ecology: facultatively mobile infaunal suspension feeder

Distribution:

• Miocene of United States (11: California collections)

• Oligocene to Miocene of United States (2: California)

• Oligocene of United States (3: California)

Total: 16 collections each including a single occurrence

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