Mactromeris brevirostrata Packard 1916 (clam)

Bivalvia - Cardiida - Mactridae

Alternative combinations: Mactra (Spisula) brevirostrata, Spisula (Hemimactra) brevirostrata

Full reference: E. L. Packard. 1916. Mesozoic and Cenozoic Mactrinae of the Pacific Coast of North America. University of California Publications, Bulletin of the Department of Geology 9(16):261-360

Belongs to Mactromeris according to E. J. Moore 2003

See also Grant, IV and Gale 1931, Hall 2002 and Packard 1916

Sister taxa: Mactromeris abbotti, Mactromeris acutirostrata, Mactromeris aequilateralis, Mactromeris albaria, Mactromeris beali, Mactromeris bisculpturata, Mactromeris capayana, Mactromeris catilliformis, Mactromeris coalingensis, Mactromeris eugenensis, Mactromeris gaviotaensis, Mactromeris hannibali, Mactromeris hemphillii, Mactromeris markleyensis, Mactromeris mercedensis, Mactromeris merriami, Mactromeris montereyana, Mactromeris mossbeachensis, Mactromeris muliniaformis, Mactromeris occidentalis, Mactromeris pittsburgensis, Mactromeris polynyma, Mactromeris ramonensis, Mactromeris rushi, Mactromeris sectoris, Mactromeris sisquocensis, Mactromeris subquadrata, Mactromeris tejonensis, Mactromeris tenuissima, Mactromeris trampasensis, Mactromeris voyi, Mactromeris weaveri

Ecology: facultatively mobile infaunal suspension feeder

Distribution:

• Pliocene of United States (1: California collection)

• Miocene of United States (4: Alaska)

Total: 5 collections each including a single occurrence

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