Bivalvia - Trigoniida - Myophorelloidae
Parent taxon: Myophorella according to Crickmay 1930
See also Cox 1952
Sister taxa: Myophorella (Clavitrigonia), Myophorella (Clavotrigonia), Myophorella (Myophorella), Myophorella (Orthotrigonia), Myophorella (Scaphogonia), Myophorella (Scaphotrigonia), Myophorella alaskaensis, Myophorella amdoensis, Myophorella argo, Myophorella clavulosa, Myophorella dawsoni, Myophorella devexa, Myophorella formosa, Myophorella freboldi, Myophorella nodulosa, Myophorella orientalis, Myophorella packardi, Myophorella tipperi, Myophorella tuxedniensis, Myophorella yellowstonensis
Subtaxa: Myophorella (Haidaia) dawsoni Myophorella (Haidaia) yellowstonensis
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Cretaceous of Argentina (1 collection)
• Jurassic of Japan (7), United States (4: California, Utah, Wyoming)
Total: 12 collections including 16 occurrences