original description
(of Helcionella insulcata Rasetti, 1957 †) Rasetti F. (1957). Additional fossils from the Middle Cambrian Mt. Whyte Formation of the Canadian Rocky Mountains. <em>Journal of Paleontology.</em> 31(5): 955-972.
page(s): 969-971, figs. pl. 122 f. 9-14 [details]
taxonomy source
Parkhaev, P. Y.; Demidenko, Y. E. (2010). Zooproblematica and mollusca from the Lower Cambrian Meishucun section (Yunnan, China) and taxonomy and systematics of the Cambrian small shelly fossils of China. <em>Paleontological Journal.</em> 44(8): 883-1161., available online at https://doi.org/10.1134/s0031030110080010
page(s): 1023 [details] Available for editors [request]
From editor or global species database
Type locality Canada, British Columbia, Rocky Mountains, locality W28fg, Mt. Field [details]