Where: Garfield County, Montana (47.6° N, 107.0° W: paleocoordinates 54.0° N, 81.8° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Tullock Formation, Puercan (66.0 - 63.3 Ma)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; gray siltstone and fine-grained sandstone
Size class: macrofossils
Collected by C. Engdahl; reposited in the UCMP
Primary reference: M. T. Greenwald. 1979. Leidyosuchus canadensis (Crocodilia: Crocodylidae) from the Early Paleocene of Montana. PaleoBios 30:1-6 [P. Mannion/P. Mannion]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 123518: authorized by Philip Mannion, entered by Philip Mannion on 25.01.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Actinopteri | |
Lepisosteus sp. Agassiz 1843 gar | |
Amia sp. Linnaeus 1766 bowfin | |
Reptilia | |
Trionychidae indet. Gray 1825 softshell turtle | |
Champsosaurus sp. Cope 1876 choristodere | |
| |
Osteichthyes | |
Acipenser sp. Linnaeus 1758 sturgeon |