Bivalvia - Mytilida - Mytilidae

Alternative combination: Mytilus mathewsonii expansus

Full reference: R. Arnold. 1907. New and characteristic species of fossil mollusks from the oil-bearing Tertiary formations of southern California. Proceedings of the United States National Museum 32(1545):525-546

Belongs to Mytilus (Crenomytilus) according to E. J. Moore 1983

Sister taxa: Crenomytilus expansus, Crenomytilus grayanus, Crenomytilus mathewsoni, Crenomytilus schencki, Mytilus (Crenomytilus) coalingensis, Mytilus (Crenomytilus) kewi, Mytilus (Crenomytilus) mathewsonii, Mytilus (Crenomytilus) perrini, Mytilus (Crenomytilus) trampasensis

Type specimen: USNM 164968, a shell

Distribution: there are no occurrences of Mytilus (Crenomytilus) expansus in the database

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Specimen images are retrieved through the ePANDDA API.