MolluscaBase source details
Billings, E. (1857). New species of fossils from the Silurian rocks of Canada. In: Geological Survey of Canada. Report of Progress For the Years 1853-54-55-56. (Logan, W.E. Eds). pp. 256-345.
478201
Billings, E.
1857
New species of fossils from the Silurian rocks of Canada
In: Geological Survey of Canada. Report of Progress For the Years 1853-54-55-56. (Logan, W.E. Eds)
pp. 256-345
Publication
Date
action
by
Orthoceras formosum Billings, 1857 † accepted as Ephippiorthoceras formosum (Billings, 1857) † (original description)
