Twenty-three brachiopods, one gastropod, seven smaller foraminifera and fourteen ostracods are described and illustrated from the Permian portion of the Tika Creek section in southeastern Yukon Territory. Of these, three brachiopod and six ostracod species are recognized as new. A fusuilinid species from the Tatonduk River in west-central Yukon Territory is also described. Stratigraphic ranges of species common to the Tika and Tatonduk River sections are noted.

Brachiopods and fusulinids are used as a basis for correlation with the Canadian Arctic Archipelago, Alaska, Greenland, Spitzbergen, the Russian standard section, central Oregon and Texas.

The brachiopod species indicate an Upper Leonardian (Upper Artinskian) to Lower Guadalupian (Lower Kungarian) age; the fusulinid, however, suggests the older age is the more probable.

The disconformity placed between the Assistance and Belcher Channel Formations on Grinnell Peninsula (Harker and Thorsteinnson, 1960) is considered to be of small magnitude.

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