Traits taxon details
original description
(of ) Whitfield, R. P. (1886). Notice of geological investigations along the eastern shore of Lake Champlain, conducted by Prof. H.J. Seely and Pres. Ezra Brainerd, of Middlebury College, with descriptions of the new fossils discovered. <em>Bulletin of the American Museum of Natural History.</em> 1(17): 193-345. page(s): 319, pl. 27, figs. 14–16 [details] 
basis of record
Kröger, B.; Landing, E. (2009). Cephalopods and paleoenvironments of the Fort Cassin Formation (upper Lower Ordovician), eastern New York and adjacent Vermont. <em>Journal of Paleontology.</em> 83(5): 664-693., available online at https://doi.org/10.1666/08-181.1 [details] Available for editors 
|