On some new or little known fossils from the Silurian and Devonian rocks of Ontario Billings--On fossils Billings, E. (Elkanah), 1820-1876 creator text book S.l s.n 1874 1874
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ENG Running title: Billings--On fossils. From: The Canadian Naturalist [Vol. vii, no. 4]. Corals Paleontology Paleozoic Sponges FC 02 0203 no. 06608 AEU 563.6 CIHM/ICMH microfiche series, no. 06608 https://www.biodiversitylibrary.org/bibliography/38278 0665066082 10.5962/bhl.title.38278 CaOOCIHM