Traits taxon details
original description
Ulrich, E. O.; Foerste, A. F. (1933). The earliest known cephalopods. <em>Science.</em> 78(2022): 288-289., available online at https://doi.org/10.1126/science.78.2022.288 page(s): 288 [details] Available for editors 
basis of record
Pohle, A.; Jell, P.; Klug, C. (2024). Plectronoceratids (Cephalopoda) from the latest Cambrian at Black Mountain, Queensland, reveal complex three-dimensional siphuncle morphology, with major taxonomic implications. <em>PeerJ.</em> 12: e17003., available online at https://doi.org/10.7717/peerj.17003 [details]
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