Traits taxon details
original description
Flower, R. H. (1946). Ordovician cephalopods of the Cincinnati region. <em>Bulletin of American Paleontology.</em> 29(116): 1-556., available online at https://www.biodiversitylibrary.org/page/10650257 page(s): 250 [details]
basis of record
Yun C.-S. (1999). Three Ordovician cephalopods from the Jigunsan Formation of Korea. <em>Paleontological Research.</em> 3(2): 65-80. page(s): 70 [details] Available for editors 
additional source
Kröger, B.; Beresi, M. S.; Landing, E. (2007). Early orthoceratoid cephalopods from the Argentine Precordillera (Lower-Middle Ordovician). <em>Journal of Paleontology.</em> 81(6): 1266-1283., available online at https://doi.org/10.1666/06-013.1 [details] Available for editors 
|