Gateway to the Paleobiology Database
Egg Mountain, MOR TM-006 (Cretaceous of the United States)

Where: Teton County, Montana (47.8° N, 112.2° W: paleocoordinates 55.4° N, 78.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Two Medicine Formation (Montana Group), Judithian (84.9 - 70.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; carbonate

Size classes: macrofossils, mesofossils

Collected by F. Tannenbaum, R. Makela, J. Horner in 1979

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

Primary reference: M. Montellano. 1988. Alphadon halleyi (Didelphidae, Marsupialia) from the Two Medicine Formation (Late Cretaceous, Judithian) of Montana. Journal of Vertebrate Paleontology 8(4):378-382 [J. Alroy/J. Alroy/R. Whatley] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 14453: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Matthew Carrano and Philip Mannion

Creative Commons license: CC BY (attribution)