Barrett #2 (Cretaceous of the United States)

Also known as Black Hills

Where: Wyoming (44.7° N, 104.2° W: paleocoordinates 43.0° N, 59.9° W)

• coordinate based on nearby landmark

When: Cretaceous Formation, Cretaceous (145.0 - 66.0 Ma)

• Due to the 19th century date of publication, the "Cretaceous Formation" is the highest stratigraphic resolution for this collection.

• formation-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine

• "Clay shales with local thin beds of impure coal. Fragments of fossils are abundant in the clays."

Size classes: macrofossils, mesofossils

Preservation: mold/impression, adpression, original carbon

Collection methods: bulk,

Primary reference: L.F. Ward. 1899. The Cretaceous formation of the Black Hills as as indicated by the fossil plants. Cretaceous Formation of the Black Hills [B. Tiffney/J. Fosdick/B. Tiffney]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 32045: authorized by Bruce Tiffney, entered by Julia Fosdick on 02.06.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Ginkgoopsida
 Czekanowskiales -
Pinopsida
 Pinales - Taxaceae
Cephalotaxopsis magnifolia Fontaine 1889 yew
Nageiopsis longifolia Fontaine 1889 yew
Nageiopsis angustifolia Fontaine 1889 yew
 Pinales - Pinaceae
Pinus susquaensis Dawson 1882 pine
Polypodiopsida
  - Polypodiaceae
"Thyrsopteris elliptica" = Onychiopsis goepperti
"Thyrsopteris elliptica" = Onychiopsis goepperti Schenk 1871
 Schizaeales - Polypodiidae
"Baieropsis adiantifolia" = Acrostichopteris adiantifolia, "Baieropsis pluripartita" = Acrostichopteris pluripartita
"Baieropsis adiantifolia" = Acrostichopteris adiantifolia Fontaine 1889
"Baieropsis pluripartita" = Acrostichopteris pluripartita Fontaine 1889