Echinoidea note details

Status
English
eng
tentatively attributed to Hemiaster by the authors
Meek F.B. & Hayden F.V. (1858 ["1857"]). Descriptions of new genera of fossils, collected by Dr. F.V. Hayden, in Nebraska territory, under the direction of Lieut. G.K. Warren, US Topographical Engineer; with some remarks on the Tertiary and Cretaceous formations of the north-west, and parallelism of the latter with those of other portions of the United States and Territories. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 9: 117–148. available online at https://www.biodiversitylibrary.org/page/6330383 
Date
action
by
2020-01-30 09:19:21Z
created