Kukpowruk River 98-18 (Cretaceous to of the United States)

Also known as Kukpowruk River/Cape Lisburne floras

Where: western North Slope County, Alaska (69.5° N, 162.8° W: paleocoordinates 79.2° N, 95.4° 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: pond; concretionary, gray mudstone and fine-grained, gray sandstone

• Description. Poor exposure of fine-grained, light grey sandstone,

•weathering to orange, bearing only comminuted plant debris.

•Dark grey, poorly indurated mudstone with ironstone nodules

•containing Podozamites, small-leafed Pityophyllum and sparse-leafed

•Cephalotaxopsis. The sandstones were rooted by ?Equisetites.

•Interpretation. Channels and interfluve ponds.

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 34619: authorized by Dana Royer, entered by Dana Royer on 12.09.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Cephalotaxopsis sp.
sparse-leafed; occurs in mudstones
Gnetopsida
  -
Pityophyllum sp. Seward 1919
small-leafed; occurs in mudstones
Pinopsida
 Pinales - Podocarpaceae
Podozamites spp. Braun 1843
occurs in mudstones