Also known as MOR HC-379

Where: Garfield County, Montana (47.6° N, 106.9° W: paleocoordinates 54.3° N, 80.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Hell Creek Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• Lower third of the Hell Creek Formation, ~60 m below the upper contact with the overlying Fort Union Formation

• bed-level stratigraphic resolution

Environment/lithology: fluvial; mudstone

Size class: macrofossils

Collected by Nathan Mhyrvold (MOR) in 2000

Primary reference: D. W. Fowler, J. P. Wilson, E. A. Freedman Fowler, C. R. Noto, D. Anduza and J. R. Horner. 2020. Trierarchuncus prairiensis gen. et sp. nov., the last alvarezsaurid: Hell Creek Formation (uppermost Maastrichtian), Montana. Cretaceous Research 116:104560 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 217034: authorized by Philip Mannion, entered by Philip Mannion on 19.01.2021

Creative Commons license: CC BY (attribution)