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Article: The atrypidine brachiopod Dayia navicula (J. de C. Sowerby)

Publication: Palaeontology
Volume: 11
Part: 4
Publication Date: November 1968
Page(s): 612 626
Author(s): E. V. Tucker
DOI:
Addition Information

How to Cite

TUCKER, E. V. 1968. The atrypidine brachiopod Dayia navicula (J. de C. Sowerby). Palaeontology11, 4, 612–626.

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Abstract

The atrypidine brachiopod Dayia navicula (J. de C. Sowerby) is described and a neotype is designated. The musculature is reinterpreted and shown to differ from previous interpretations. Comparisons are made between Dayia navicula s. str. and other forms referred to the species. Between the Ludlow and the Lower Devonian the shells increase in size and incurvature of the umbo becomes less marked.
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