Traits taxon details
original description
(of ) Hall J. (1847). Palaeontology of New York, vol. 1, Containing descriptions of the organic remains of the lower division of the New York system, (equivalent of the Lower Silurian rocks of Europe). <em>Albany: C. van Benthuysen.</em> xxiii+1-338., available online at https://biodiversitylibrary.org/page/55227010 [details]
basis of record
Sproat, C. D.; McLeod, J. S. (2023). Sympatric speciation driving evolution of Late Ordovician brachiopod <i>Zygospira</i> in eastern North America. <em>Journal of Paleontology.</em> 97(2): 292-317., available online at https://doi.org/10.1017/jpa.2022.102 [details]
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