Acutispinula Filatova and Schileyko 1984 (pointed nut clam)
Bivalvia - Protobranchia - Nuculanidae
Alternative spelling: Bathyspinula (Acutispinula)
Parent taxon: Nuculanidae according to P. M. Mikkelsen 2006
Sister taxa: Acilana, Australoportlandia, Bathyspinula, Bathyspinulinae, Calorhadia, Costelloleda, Dacromya, Ezonuculana, Glyptoleda, Hilgardia, Indonuculana, Ledella, Ledellinae, Ledoides, Lembulus, Litorhadia, Mesosaccella, Multidentata, Nuculaninae, Nucundata, Orthoyoldia, Parayoldiella, Phestia, Phestiinae, Polidevcia, Poroleda, Poroledidae, Praeportlandia, Propeleda, Saccella, Scissuladrana, Spineilo, Xiaoschuiculana, Zealeda
Subtaxa: Bathyspinula (Acutispinula) calcar
Ecology: facultatively mobile infaunal deposit feeder-suspension feeder