Abstract

Samples from two closely placed localities in western Yukon Territory have yielded late Early Devonian conodonts characteristic of areas farther to the north and east in Alaska and Yukon Territory and also characteristic of central and northern Siberia. Conodonts from a nearby locality in east-central Alaska indicate an age that makes the associated graptolites of considerable interest: they are among the youngest graptolites known in North America.

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