Bivalvia - Cardiida - Mactridae
Alternative combinations: Spisula (Hemimactra) merriami, Spisula merriami
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 Dickerson 1916, Packard 1916 and Squires 1987
Sister taxa: Mactromeris abbotti, Mactromeris acutirostrata, Mactromeris aequilateralis, Mactromeris albaria, Mactromeris beali, Mactromeris bisculpturata, Mactromeris brevirostrata, Mactromeris capayana, Mactromeris catilliformis, Mactromeris coalingensis, Mactromeris eugenensis, Mactromeris gaviotaensis, Mactromeris hannibali, Mactromeris hemphillii, Mactromeris markleyensis, Mactromeris mercedensis, 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:
• Eocene of Mexico (1 collection), the Russian Federation (1), United States (20: California, Oregon)
• Paleocene of the Russian Federation (2)
Total: 24 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.