ammonites
Phestia sinuata Dembskaja 1972 (pointed nut clam)

Bivalvia - Protobranchia - Nuculanidae

Alternative combinations: Leda sinuata, Nuculana sinuata

Belongs to Phestia according to M. E. Clapham 2011

Sister taxa: Phestia basedowi, Phestia corrugata, Phestia darwini, Phestia elongata, Phestia hunanensis, Phestia inflatiformis, Phestia lusabaensis, Phestia nova, Phestia obtusa, Phestia pandoraeformis, Phestia perumbonata, Phestia rugodorsata, Phestia speluncaria, Phestia subacuta, Phestia thompsoni, Phestia wortheni, Phestia zhejiangensis

Type specimen: Its type locality is Vorgashorskoe Coalfield, Well VK-1148, 391 m, Pechora Basin, which is in a Kungurian marine siliciclastic in the Lekvorkuta Formation of the Russian Federation

Ecology: facultatively mobile infaunal deposit feeder-suspension feeder