The earliest Ancistrolepis (Gastropoda: Buccinidae) and its geologic implications

Abstract

Buccinidae) and its geologic implications. Cover illustration: . Copy of a Kodachrome 35-mm slide (taken by the author) of the apertural view of the missing holotype of Ancistrolepis carolineae Squires, 1984 from the "Stewart bed" at LACMIP Locality 40374, measuring length 32 mm, width 20 mm.