THE LARVAL SHELL OF CAMBRIAN PHOSPHATIC BRACHIOPODS: MORPHOLOGICAL AND ECOLOGICAL ASPECTS

Abstract

The morphological characters of the embryonic shell of Cambrian phosphatic brachiopods of the class Lingulata described in this paper include its size, relation to juvenile and adult shells, external microornamentation and processes, and ontogeny of the pedicle opening. Some anatomical features of the soft body are detected in the best preserved specimens.