Canadoceras mysticum Matsumoto, 1959

Remarks

• Collector:    Unknown

• Formation:  Nanaimo Group

• Location:     Vancouver Island, British Columbia, Canada

• We would like to thank Ray Graham, an experienced Nanaimo Group collector, for correcting the identification.

• Ray informs us that the form and preservation indicates that this is C. mysticum (Matsumoto) from a now "extinct" shale quarry west of Nanaimo.

• He sent us photos of Canadoceras yokoyamai, C. newberryanum, and C. mysticum from Matsumoto (1959, see ref below), and our example is clearly C. mysticum.

• Thanks!

General Info

Synonyms (older names and misidentifications in the literature)

• 1959 Canadoceras mysticum Matsumoto

Stratigraphic Occurrence

• Nanaimo Group of Vancouver, Canada

Age

• Late Middle Campanian age (~77–76 mya).

Geographic Occurrence (not an all-inclusive list)

• Vancouver Island, British Columbia, Canada

Remarks

         For identification and descriptions, see:

• Jones, D. L.  1963.  Upper Cretaceus (Campanian and Maestrichtian) Ammonites from Southern Alaska.  United States Geological Survey Professional Paper 432, (C. newberryanum):  41–42; plate 36, fig's 1–5 and 7–10; (C. yokoyamai):  42–44; plate 36, fig. 6 and plate 37.

• Matsumoto, T.  1959.  Upper Cretaceous Ammonites of California.  Part II.  Memoirs of the Faculty of Science, Kyushu University, Series D (Geology), Special Volume I, 59-60; plate 15, fig's 2, 3a–c, and 5a.

• Usher, J. L.  1952.  Ammonite Faunas of the Upper Cretaceous Rocks of Vancouver Island, British Columbia.  Geological Survey of Canada Bulletin 21, 65–68;  plate 6, fig's 4–7; plate 7, fig. 1; plate 8, fig's 1–2 and plate 31, fig. 4.