Snake River Canyon (Jurassic to of the United States)

Where: Oregon/Idaho (45.6° N, 116.5° W: paleocoordinates 36.9° N, 57.7° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Coon Hollow Formation, Bajocian to Bajocian (170.3 - 163.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: delta plain; lithified, conglomeratic sandstone and lithified, gray shale

Size class: macrofossils

Preservation: mold/impression, adpression, permineralized, coalified

Collection methods: quarrying, surface (float), surface (in situ), mechanical,

Primary reference: S. Ash. 1991. A new Jurassic Phlebopteris (Plantae, Filicales) from the Wallowa terrane in the Snake River Canyon, Oregon and Idaho. Journal of Paleontology 65(2):322-329 [A. Rees/D. Sunderlin/D. Sunderlin]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24792: authorized by Allister Rees, entered by Dave Sunderlin on 20.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pinales - Podocarpaceae
Mesembrioxylon sp. Seward 1919
Podozamites sp. Braun 1843
 Pinales - Araucariaceae
Pagiophyllum sp. Heer 1881
 Pinales -
Brachyphyllum sp. Brongniart 1828
 Ginkgoales - Ginkgoaceae
 Caytoniales - Caytoniaceae
Sagenopteris sp. Presl 1838
 Calamopityales - Calamopityaceae
Adiantites sp. Bell 1960
Cladophlebis spp. Brongniart 1849
 Cyatheales - Dicksoniaceae
  - Isoetaceae
Isoetites sp. Muenster 1842
  - Calamitaceae
Neocalamites sp. Halle 1908