Bivalvia - Cardiida - Mactridae
Alternative combinations: Mactra (Spisula) ramonensis, Spisula ramonensis
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
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 merriami, Mactromeris montereyana, Mactromeris mossbeachensis, Mactromeris muliniaformis, Mactromeris occidentalis, Mactromeris pittsburgensis, Mactromeris polynyma, Mactromeris rushi, Mactromeris sectoris, Mactromeris sisquocensis, Mactromeris subquadrata, Mactromeris tejonensis, Mactromeris tenuissima, Mactromeris trampasensis, Mactromeris voyi, Mactromeris weaveri
Type specimen: UCMP 11118, a shell
Distribution:
• Oligocene of United States (18: Alaska, California, Washington collections)
• Eocene of United States (21: California)
Total: 39 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.