Where: Gallatin County, Montana (45.4° N, 111.2° W: paleocoordinates 13.6° S, 46.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Palmatolepis expansa conodont zone, Sappington Member (Three Forks Shale Formation), Late/Upper Famennian (364.7 - 360.7 Ma)
• bed-level stratigraphic resolution
Environment/lithology: marine; carbonate
macrofossils are enclosed by "accretionary, concentrically laminated (cyanobacterial) oncoids"
Size classes: macrofossils, mesofossils
Preservation: concretion
Collection methods: summary of earlier biostratigraphic literature within a taxonomic publication
Primary reference: R. C. Gutschick and J. Rodriguez. 1990. By-the-wind-sailors from a Late Devonian foreshore environment in western Montana. Journal of Paleontology 64(1):31-39 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 3433: authorized by John Alroy, entered by John Alroy on 01.08.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
"Platyceras (Orthonychia) sp." = Orthonychia
| |
Rhynchonellata | |
Tylothyris sp. North 1920 | |
Beecheria sp. Hall and Clarke 1893 | |
Strophomenata | |
| |
Crinoidea | |
Crinoidea indet. Miller 1821 Sea lily | |
Anthozoa | |
|