Red Hill (Devonian of the United States)

Where: Jefferson County, Montana (45.9° N, 112.0° W: paleocoordinates 14.8° S, 46.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: trident Member (Three Forks Formation), Middle Famennian (370.6 - 364.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified shale

Size class: macrofossils

Preservation: replaced with limonite

Reposited in the MfN

Primary reference: D. Korn and A. Titus. 2006. The ammonoids from the Three Forks Shale (Late Devonian) of Montana. Fossil Record 9(2):198-212 [D. Korn/D. Korn]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64138: authorized by Dieter Korn, entered by Dieter Korn on 01.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

 Clymeniida - Carinoclymeniidae
Carinoclymenia sp. Bogoslovsky 1965 ammonite
 Clymeniida - Platyclymeniidae
Platyclymenia montana n. sp. Korn and Titus 2006 ammonite
Pleuroclymenia americana Raymond 1907 ammonite
 Goniatitida - Prolobitidae
Raymondiceras simplex Raymond 1909 ammonite
 Goniatitida - Tornoceratidae
Tornoceras sp. Hyatt 1884 ammonite
 Goniatitida - Kirsoceratidae
Pernoceras crebriseptum Raymond 1909 ammonite