Kahn's Cache, TA 1997.002 (Cretaceous of the United States)

Where: Teton County, Montana (47.8° N, 112.2° W: paleocoordinates 55.5° N, 78.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Upper Member (Two Medicine Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• upper part of formation, approx. 385 m above base

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; fine-grained, pebbly, intraclastic, argillaceous, calcareous siltstone

• "a series of recurrent flooding events"
• "The bones are preserved in fine-grained, poorly sorted, muddy siltstone. Nodules identifed as redeposited caliche, transported pebbles, and mud clasts are present but are primarily confined to the upper portions of the facies."

Size classes: macrofossils, mesofossils

Collected by P. J. Currie in 1997

Collection methods: quarrying, surface (in situ), mechanical,

• 1400 elements from 100 m2 area

Primary reference: P. J. Currie, D. Trexler, E. B. Koppelhus, K. Wicks, and N. Murphy. 2005. An unusual multi-individual bonebed in the Two Medicine Formation (Late Cretaceous, Campanian) of Montana (USA). In K. Carpenter (ed.), The Carnivorous Dinosaurs. Indiana University Press, Bloomington 313-324 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taphonomic analysis

PaleoDB collection 68045: authorized by Matthew Carrano, entered by Matthew Carrano on 29.12.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Avetheropoda - Tyrannosauridae
Daspletosaurus sp. Russell 1970 tyrannosaurine
probably same new species as in Horner et al. 1992
 Neornithischia - Hadrosauridae
Lambeosaurinae indet. Parks 1923 lambeosaurine