Bivalvia - Trigoniida - Megatrigonioidae

Alternative combination: Trigonia evansana oregana

Synonym: Trigonia deschutesensis Packard 1921

Full reference: E. L. Packard. 1921. The Trigoniae from the Pacific Coast of North America. University of Oregon Publications 1(9)

Belongs to Pterotrigonia according to D. L. Jones 1960

See also Elder and Miller 1993 and Packard 1921

Sister taxa: Pterotrigonia (Acanthotrigonia), Pterotrigonia (Pterotrigonia), Pterotrigonia (Ptilotrigonia), Pterotrigonia (Rinetrigonia), Pterotrigonia (Scabrotrigonia), Pterotrigonia (Scabrotrigonia) eufaulensis, Pterotrigonia borgesi, Pterotrigonia crenulata, Pterotrigonia cristata, Pterotrigonia ethra, Pterotrigonia evansana, Pterotrigonia klamathonia, Pterotrigonia vaelsiensis, Notoscabrotrigonia tocaimaana, Pisotrigonia salebrosa, Rinetrigonia ventricosa

Type specimens:

• Pterotrigonia oregana: Condom Museum type number 11dom Museum type number 4
• Trigonia deschutesensis: Condom Museum type number 9.

Ecology: facultatively mobile infaunal suspension feeder

Distribution: found only at USGS M8734, Adobe Canyon (Cretaceous of California)

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Specimen images are retrieved through the ePANDDA API.