Traits taxon details
original description
Ulrich, E. O.; Foerste, A. F. (1936). New genera of Ozarkian and Canadian cephalopods. <em>Journal of the Scientific Laboratories of Denison University.</em> 30: 259-290. [details]
new combination reference
Kröger, B.; Landing, E. (2007). The earliest Ordovician cephalopods of eastern Laurentia — Ellesmerocerids of the Hill Formation, eastern New York. <em>Journal of Paleontology.</em> 81(5): 841-857., available online at https://doi.org/10.1666/pleo05-166.1 [details] Available for editors 
|