III.—Some Palæozoic Fossils referred to the Cirripedia

Abstract

Scattered throughout the Palæozoic rocks there are frequently found certain fossils, in most cases represented by single detached plates, which have been ascribed by various authors to the sub-class Cirripedia. Thus we have fossils described under the names Balanus, Cirripodites, Lepidocoleus, Plumulites, Pollicipes, Protobalanus, Scalpellum, Stenotheca, Strobilepas, and Turrilepas, but in the case of Balanus, Pollicipes, and Sealpellum, the reference to those recent genera is quite unsupported by the structure of the fossils.