ammonites
Fissurella (Fissurella) perisca DeVries 2008 (snail)

Gastropoda - Fissurelloidea - Fissurellidae

Full reference: T. J. DeVries. 2008. Pliocene and Pleistocene Fissurella Bruguiére, 1789 (Gastropoda: Fissurellidae) from Southern Peru. The Veliger 50(2):129-148

Belongs to Fissurella (Fissurella) according to T. J. DeVries 2008

Sister taxa: Fissurella (Fissurella) aranea, Fissurella (Fissurella) concolor, Fissurella (Fissurella) crassa, Fissurella (Fissurella) geoglypha, Fissurella (Fissurella) latimarginata, Fissurella (Fissurella) limbata, Fissurella (Fissurella) maxima, Fissurella (Fissurella) mcleani, Fissurella (Fissurella) mexicana, Fissurella (Fissurella) nimbosa, Fissurella (Fissurella) peruviana, Fissurella (Fissurella) pulchra

Ecology: facultatively mobile epifaunal grazer

Average measurements (in mm): shell length 31.9