Germer Basin flora P-28 (Eocene of the United States)

Where: Custer County, Idaho (44.4° N, 114.2° W: paleocoordinates 49.7° N, 98.1° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Germer Tuffaceous Member (Challis Volcanics Formation), Early/Lower Eocene (55.8 - 48.6 Ma)

• member-level stratigraphic resolution

Environment/lithology: lacustrine - small

• fine-grained sandstone and shales

Size class: mesofossils

Preservation: mold/impression, original carbon

Collection methods: bulk,

Primary reference: D. W. Edelman. 1975. The Eocene Germer Basin Flora of South-Central Idaho. 1-126 [B. Tiffney/J. Fosdick/B. Tiffney]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 35337: authorized by Bruce Tiffney, entered by Julia Fosdick on 01.12.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Angiospermae
 Fagales - Betulaceae
Ostrya oregoniana, Alnus relatus, Betula thor
Ostrya oregoniana hophornbeam
Betula thor Knowlton 1926 birch
 Fagales - Myricaceae
Comptonia hesperia
 Coniferales - Cupressaceae
Metasequoia occidentalis, Sequoia affinis
Metasequoia occidentalis Chaney 1951 dawn redwood
Sequoia affinis Lesquereux 1876 coast redwood
Pinopsida
 Pinales - Pinaceae
Pseudolarix americana
Polypodiopsida
 Equisetales - Equisetidae
Equisetum cf. arcticum
Equisetum cf. arcticum Heer 1866 horsetail