Traits taxon details
original description
Flower, R. H.; Kummel, B. (1950). A classification of the Nautiloidea. <em>Journal of Paleontology.</em> 24: 604–616. page(s): 611 [details] Available for editors 
basis of record
Kröger, B. (2025). The Lyckholm acme of cephalopods – Review of the late Katian (Vormsi–Pirgu regional stages) Ordovician cephalopods of Estonia. <em>European Journal of Taxonomy.</em> 978: 1-169., available online at https://doi.org/10.5852/ejt.2025.978.2801 page(s): 73 [details] Available for editors 
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