Full reference: F. Hodson, H. K. Hodson, and G. D. Harris. 1927. Some Venezualan and Caribbean Mollusks. Bulletins of America Paleontology 13(49):1-160
Belongs to Arca (Scapharca) according to F. Hodson et al. 1927
Sister taxa: Arca (Scapharca) aguadica, Arca (Scapharca) collazica, Arca (Scapharca) ecuadoriana, Arca (Scapharca) hopkinsi, Arca (Scapharca) sansebastiana, Arca (Scapharca) wheeleri, Scapharca (Scapharca), Scapharca axelolssoni, Scapharca broughtoni, Scapharca cornea, Scapharca crashleyi, Scapharca crassissima, Scapharca eusphaera, Scapharca inaequivalvis, Scapharca meroensis, Scapharca pertenuicosta, Scapharca pinguescens, Scapharca rustica, Scapharca satowi, Scapharca sedanensis, Scapharca terhaari, Scapharca tjilanangensis, Scapharca vanwinkleae
Ecology: facultatively mobile epifaunal suspension feeder