Traits taxon details
original description
Miller, S. A. (1889). North American Geology and Palaeontology for the use of Amateurs, Students and Scientists. <em>Western Methodist Book Concern. Cincinnati.</em> 1-664., available online at https://www.biodiversitylibrary.org/page/22014305 page(s): 458 [details]
basis of record
Rohr, D. M.; Boyce, W. D.; Knight, I.; Measures, E. A. (2008). The rostroconch mollusc <i>Euchasma</i> Billings, 1865 from the Lower Ordovician Catoche Formation, western Newfoundland. Newfoundland and Labrador Department of Natural Resources, Geological Survey, Report 08-1, pp. 79-91. [details] Available for editors 
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