Article
Article
Pentamerida
Article By:
Cocks, L. R. M. Department of Palaeontology, Natural History Museum, London, United Kingdom.
Last reviewed:August 2019
DOI:https://doi.org/10.1036/1097-8542.496600
An extinct order of Brachiopoda that lived from the Lower Cambrian to Upper Devonian (540 to 375 million years ago), with a peak during the Silurian Period. Pentamerides (Figs. 1 and Fig. 2) are the largest brachiopods in the Lower Paleozoic, with adults ranging from 1 to 18 cm (0.4 to 7 in.) in length, and the order forms part of the subphylum Rhynchonelliformea (previously termed the Articulata). See also: Brachiopoda; Rhynchonelliformea
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