Bivalvia - Protobranchia - Solemyidae

Alternative combination: Solenomya trapezoides

Full reference: F. B. Meek. 1874. Notes on some of the fossils figured in the recently issued fifth volume of the Illinois State Geological Report. American Journal of Science Series 3 7:189-488

Belongs to Solemya according to B. S. Kues et al. 2002

Sister taxa: Solemya (Petrasma), Solemya (Solemya), Solemya abbreviata, Solemya funingensis, Solemya insignifica, Solemya lomitensis, Solemya occidentalis, Solemya parallella, Solemya petricoloides, Solemya radiata, Solemya sulcifera, Solemya velum, Solemya ventricosa

Ecology: facultatively mobile deep infaunal deposit feeder-chemosymbiotic