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Upper Colville River, Alaska

        Upper Colville Fossil Images Unassigned Fossil Images 85JTP12

 

This interactive map of part of the Colville River, Northern Alaska, shows the locations of plant fossil collections made by J.T. Parrish and R.A. Spicer in 1985 and 1989. Click on a number for more details on that site. The red outlined area links to another map showing positions of florules (plant fossil assemblages) collected by C.J. Smiley along both the Colville and Chandler Rivers.

Interactive map of the Upper Colville River Hotspot linking to 85RAS09 Hotspot linking to Smiley's Colville and Chandler River localities. Hotspot linking to 85RAS02 Hotspot linking to 85RAS01 Hotspot linking to 85RAS03 Hotspot linking to 85RAS04 Hotspot linking to 85RAS05 Hotspot linking to 85RAS06 Hotspot linking to 85RAS07 Hotspot linking to 85RAS08 Hotspot linking to 85RAS10 Hotspot linking to 85RAS11 Hotspot linking to 85RAS12 Hotspot linking to 85RAS13 Hotspot linking to 85RAS14 Hotspot linking to 85RAS13 Hotspot linking to 85RAS16 Hotspot linking to 85RAS17 Hotspot linking to 85RAS18 Hotspot linking to 85RAS19 Hotspot linking to 89RAS1_3 Hotspot linking to 89RAS04 Hotspot linking to 89RAS05 Hotspot linking to 89RAS06 Hotspot linking to 89RAS07 Hotspot linking to 89RAS09 Hotspot linking to 89RAS10 Hotspot linking to 89RAS11 Hotspot linking to 89RAS12 Hotspot linking to 89RAS164_320 Hotspot linking to Smiley's Colville and Chandler River localities.

Locality 85JTP12

The locality is in an area mapped as the Lower Killik Tongue of the Chandler Formation of Chapman et al. (1964), now the upper part of the lower half of the Nanushuk Formation of Mull et al. (2003). The section here is a succession of poorly exposed coals, fine lenticular sandstones, shaley mudstones and bentonitic clays. Most of the plant remains are in ironstone concretions and very dine sandstones, silts and clays. The flora is made up of Sphenobaeira, Podozamites, entire-margined cycadophytes, small leaved entire or barely dissected ginkgos and Cephalotaxopsis and ferns. The sandstones are devoid of angiosperms, even platanoid forms, but contain fern fronds and conifers. Angiosperms do occur in other sedimentary facies and these include Dalembia, Ziziphus and Menispermites. Compressed trunkwood occurs in the coals.

Hotspot linking to Smiley's Colville and Chandler River localities. Hotspot linking to localities along the Kukpowruk River Hotspot linking to the Kuk River Localities

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