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Slab of Devonian limestone, long winged spirifer beds. Described in Professor Samuel Calvin's article, "Adequacy of Paleontologic Record" in Popular
Photograph details: Location: Canada, Ontario; Arkona, near. Photographed by: Popular Science Magazine. Lantern Slide No. 7384. Photograph No. 113 - Larger Image - |
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Slab of limestone from the Middle Devonian, long winged variety of Spirifer Mucronatus con. Natural size.Class plate.
Photograph details: Location: Canada, Ontario; Arkona, near. Geologic Age: Devonian, Hamilton Series. Photographed by: Samuel Calvin, June 3, 1904. Lantern Slide No. 2037. Photograph No. 546 - Larger Image - |
Any additional plates from the Calvin Collection are listed below.
These will be added to the database in due course, but if you are interested in seeing them in advance, please contact Tiffany Adrain.
