Kukpowruk River

The map on the right shows the localities along the Kukpowruk River sampled both by Smiley (reported in Smiley 1969a), Spicer and Herman (1996) and by Bob and Andrew Spicer in 1998. CClick on the locality numbers to see further details of the sites and links to images of the fossils found at those sites.

Locality 98RAS21.  69.514015°N,  -162.763979°W

Corwin Formation

Specimens:

Description. This locality is the main cut bank on the North/East site of the river. A bentonitic mudstone with iron claystone nodules at the axis of the syncline. The ironstones contained Ginkgo (large leaves as well as the small dissected form), Podozamites, Desmiophyllum magnum, an unidentified fern and angiosperms.

Angiosperms in the Kukpowruk River sections appear to be restricted to localities close to the axis of the Barabara Syncline and thus represent the youngest sediments exposed in this area. They appear to be equivalent to those in the Killik Tongue, possibly those in the uppermost lower Killik, but more likely the upper Killik. Bentonites are frequent but deeply weathered and were not sampled.