The Trenton crinoid, Ottawacrinus, W.R. Billings
By: by F.A. Bather.
Series: Bulletin / Victoria Memorial Museum -- no. 1, pt. 1; Bulletin (Victoria Memorial Museum (Canada)) -- no. 1, pt. 1.
Publisher: Canada Geological Survey
Published: 1913
Place of publication: Ottawa
Language: eng
Number of pages: 10
Subjects: Crinoidea, Fossil -- Québec (Province) -- Hull
Notes: Caption title.