SOME ORDOVICIAN AND SILURIAN BRACHIOPOD ASSEMBLAGES

Authors

  • JAN BERGSTRÖM

    1. Institute of Palaeontology, University of Lund, 15th February 1968. Dr. Jan Bergström, Institute of Palaeontology, Sölvegatan 13, S-223 62 Lund.
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Abstract

Finds of brachiopod assemblages in graptolitic shales give support to Ruedemann's theory of an epiplanktic life of certain Palaeozoic brachiopods. The possibly epiplanktic brachiopods observed in the present study belong to the families Obolidae (‘Obolus’) and Sowerbyellidae (Sericoidea). Other assemblages might have been benthic, and a representative of Chonetidae (Shagamella) is thought to yield an example of this kind of biocoenosis.

Ancillary