WoRMS taxon details
original description
Canu, F.; Bassler, R. S. (1920). North American early Tertiary Bryozoa. <em>United States National Museum Bulletin.</em> 106: 1-879. (2 vols.)., available online at https://www.biodiversitylibrary.org/page/946782 page(s): 107 [details]
original description
(of Otionella mccalliei Canu & Bassler, 1920 †) Canu, F.; Bassler, R. S. (1920). North American early Tertiary Bryozoa. <em>United States National Museum Bulletin.</em> 106: 1-879. (2 vols.)., available online at https://www.biodiversitylibrary.org/page/946782 page(s): 106 [details]
original description
(of Otionella cava Canu & Bassler, 1920 †) Canu, F.; Bassler, R. S. (1920). North American early Tertiary Bryozoa. <em>United States National Museum Bulletin.</em> 106: 1-879. (2 vols.)., available online at https://www.biodiversitylibrary.org/page/946782 page(s): 108 [details]
basis of record
Recent and Fossil Bryozoa, available online at http://www.bryozoa.net/ [details]
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