Harmonica Hollow (Cretaceous of the United States)

Also known as UCMP V-74106

Where: Garfield County, Montana (47.6° N, 106.4° W: paleocoordinates 54.3° N, 79.5° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Hell Creek Formation, Lancian (70.6 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone

Size class: mesofossils

Reposited in the UCMP

Collection methods: surface (float),

Primary reference: J. D. Archibald. 1982. A study of Mammalia and geology across the Cretaceous-Tertiary boundary in Garfield County, Montana. University of California Publications in Geological Sciences 122:1-286 [J. Alroy/J. Alroy/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14563: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Theriamorpha - Pediomyidae
"Pediomys florencae" = Protolambda florencae
"Pediomys florencae" = Protolambda florencae Clemens 1966 metatherian
Reptilia
 Crocodylia - Alligatoridae
Brachychampsa sp. Gilmore 1911 crocodilian
 Ornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
 Testudinata -
Compsemys victa Leidy 1856 turtle
Amphibia
 Caudata - Urodela
Scapherpeton tectum Cope 1876 salamander