Silurian brachiopods with soft-tissue preservation

Mark D. Sutton (), Derek E. G. Briggs, David J. Siveter and Derek J. Siveter
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Mark D. Sutton: Imperial College
Derek E. G. Briggs: Yale University
David J. Siveter: University of Leicester
Derek J. Siveter: University of Oxford

Nature, 2005, vol. 436, issue 7053, 1013-1015

Abstract: Soft tissues, hard evidence Articulate brachiopods (‘lamp shells’) are among the best known Palaeozoic fossils, but our knowledge of them is based almost entirely on their shells, which are all that normally fossilize. A new find from the Welsh borders, recovered digitally from rocks 425 million years old, is the first fossilized brachiopod complete with pedicle (the stalk attaching it to the sea floor) and lophophore (feeding organ). It belongs to an extinct group, and its soft parts differ from those of later specimens; assumptions that extinct and modern brachiopods were very similar may thus be too simplistic. The specimen is doubly interesting as several smaller brachiopods are attached to its shell.

Date: 2005
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DOI: 10.1038/nature03846

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