Spring Creek Hill, mile post 242, is 6 mi N of Chiloquin (Pliocene of the United States)

Where: Oregon (42.7° N, 121.9° W: paleocoordinates 42.9° N, 121.0° W)

When: Yonna Formation, Pliocene (5.3 - 2.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: lacustrine; diatomite

Size class: microfossils

Primary reference: A. D. Mahood. 1981. Stephanodiscus rhombus, a New Diatom Species from Pliocene Deposits at Chiloquin,Oregon. Micropaleontology 27(4):379-384 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 184902: authorized by Pete Wagner, entered by Pete Wagner on 29.03.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Stephanodiscales - Thalassiosirophycidae
Stephanodiscus rhombus n. sp. Mahood 1981