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The Shell of Devonian Atrypida (Brachiopoda)
Published online by Cambridge University Press: 01 May 2009
Abstract
A simple visual method for distinguishing important Devonian atrypid brachiopod taxa, and for separating the Atrypidae and Palaferellidae family-groups is outlined. The thickness, distribution, and repetition of the three layers of impunctate atrypid shell wall differ markedly from one genus to the next and show a general evolutionary trend towards reduction and simplification.
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- Copyright © Cambridge University Press 1967
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