Hesperornis (Aves) from Ellesmere Island and palynological correlation of known Canadian localities

A tarsometatarsus of Hesperornis from the Kanguk Formation on Ellesmere Island is described and illustrated and constitutes the northernmost occurrence of the genus. Palynological evidence and stratigraphic position indicate that Canadian occurrences of Hesperornis are Campanian in age except the sp...

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Bibliographic Details
Published in:Canadian Journal of Earth Sciences
Main Authors: Hills, L V, Nicholls, E L, Núñez-Betelu, L (Koldo) M., McIntyre, D J
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1999
Subjects:
General Earth and Planetary Sciences
Ellesmere Island
Mason River
Online Access:http://dx.doi.org/10.1139/e99-060
http://www.nrcresearchpress.com/doi/pdf/10.1139/e99-060
Description
Summary:A tarsometatarsus of Hesperornis from the Kanguk Formation on Ellesmere Island is described and illustrated and constitutes the northernmost occurrence of the genus. Palynological evidence and stratigraphic position indicate that Canadian occurrences of Hesperornis are Campanian in age except the specimen from the Mason River Formation which might be as young as early Maastrichtian. Paleogeographic reconstructions indicate that all specimens are from a seaway extending along the western interior of North America.

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