Acta Palaeontologica Polonica

Marginal bryozoan Calvina from the Paleocene of Poland

Janina Szczechura

Acta Palaeontologica Polonica 35 (1-2), 1990: 41-48

Calvina kalloensis Willems and Bicornifera sp. are described from the Paleocene of Poland. History of studies of Calvina kalloensis is presented and its synonymy with Tricornicella tupilaqi Hakansson et Jürgensen, 1987, is proved.

Key words: Taxonomy, morphology, Bryozoa (Calvina. Bicornifera), Paleocene, Poland.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (for details please see, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.