†Glycymeris eocenica tejonensis Weaver 1912 (bittersweet clam)
Bivalvia - Arcida - Glycymerididae
Alternative combination: Pectunculus tejonensis
Full reference: C. E. Weaver. 1912. A preliminary report on the Tertiary paleontology of western Washington. Washington Geological Survey Bulletin 15:1-80
Belongs to Glycymeris eocenica according to C. E. Weaver 1942
See also Weaver 1912
Sister taxa: none
Type specimen: CAS 478, a shell. Its type locality is UW 227, which is in an Eocene marine horizon in the Tejon Formation of Washington.
Ecology: facultatively mobile infaunal suspension feeder
Distribution: found only at UW 227