Bivalvia - Cardiida - Mactridae
Full reference: R. B. Stewart. 1930. Gabb's California Cretaceous and Tertiary type lamellibranchs. The Academy of Natural Sciences of Philadelphia Special Publication 3:1-314
Parent taxon: Spisula according to R. B. Stewart 1930
Sister taxa: Mactra (Spisula) sammamishensis, Spisula (Austromactra), Spisula (Cymbophora), Spisula (Eomactra), Spisula (Notospisula), Spisula (Ruellia), Spisula (Spisula), Spisula (Spisulona), Spisula arcuata, Spisula brombachensis, Spisula callistaeformis, Spisula compressa, Spisula craspedota, Spisula decisa, Spisula dernburgi, Spisula elliptica, Spisula hannibali, Spisula hemphillii, Spisula jacksonensis, Spisula obtruncata, Spisula paralis, Spisula parilis, Spisula praetanius, Spisula praetenuis, Spisula rappahannockensis, Spisula semisulcata, Spisula sookensis, Spisula sorachiensis, Spisula subcuneata, Spisula subtruncata, Spisula twinensis, Spisula veneriformis
Subtaxa: none
Type: Schizodesma abscissa
Ecology: facultatively mobile infaunal suspension feeder
Distribution: there are no occurrences of Spisula (Stereomactra) in the database