Pleistocene grayling, Thymallus , from Yukon, Canada

Eleven cycloid fish scales or scale fragments with scalloped anterior margins were obtained from a Pleistocene deposit in the Old Crow area, Yukon Territory. Shells from the same horizon as the scales were radiocarbon dated at 32 400 ± 770 yr B.P. The scales are from the Arctic grayling, Thymallus a...

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Bibliographic Details
Published in:Canadian Journal of Earth Sciences
Main Authors: McAllister, D. E., Harington, C. R.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1969
Subjects:
General Earth and Planetary Sciences
Arctic
Yukon
Canada
Arctic grayling
Old Crow
Thymallus arcticus
Online Access:http://dx.doi.org/10.1139/e69-119
http://www.nrcresearchpress.com/doi/pdf/10.1139/e69-119
Description
Summary:Eleven cycloid fish scales or scale fragments with scalloped anterior margins were obtained from a Pleistocene deposit in the Old Crow area, Yukon Territory. Shells from the same horizon as the scales were radiocarbon dated at 32 400 ± 770 yr B.P. The scales are from the Arctic grayling, Thymallus arcticus, providing the first fossil records of the genus and of the subfamily Thymallinae for North America.

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