Also known as Kukpowruk River/Cape Lisburne floras
Where: western North Slope County, Alaska (69.1° N, 162.8° W: paleocoordinates 79.0° N, 96.9° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Corwin Formation, Albian to Albian (113.0 - 93.9 Ma)
• middle Albian to Cenomanian
• group of beds-level stratigraphic resolution
Environment/lithology: delta plain; gray, carbonaceous siltstone
•shales underlying fine sandstones. Siltstones contain Podozamites,
•Ginkgo, Equisetites rhizomes, rare Birisia and Pityophyllum. Podozamites
•and Equisetites predominate. Plant roots are abundant
•and Equisetites rhizomes with nodules occur even in the sandier
•facies. In the overlying sandstones there are ripples with wavelengths
•of 2.5 cm, plant fragments, worm traces and possible
•bivalve impressions.
•Interpretation. Probably a near-marine, lower delta plain interfluve
•environment.
Size class: macrofossils
Collection methods: quarrying,
Primary reference: R. A. Spicer and A. B. Herman. 2001. The Albian-Cenomanian flora of the Kukpowruk River, western North Slope, Alaska: stratigraphy, palaeofloristics, and plant communities. Cretaceous Research 22:1-40 [D. Royer/D. Royer/D. Royer]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 34297: authorized by Dana Royer, entered by Dana Royer on 26.08.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
| unclassified | |
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| Gnetopsida | |
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| Ginkgoopsida | |
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| Polypodiopsida | |
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