Clam Hollow: Lancian, Montana

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Osteichthyes
Database 2005 2 specimens
Actinopteri - Amiiformes - Amiidae
Bryant 1988 7 specimens
UCMP 129677, 2 trunk vertebrae, 1 caudal vertebra; UCMP 129675, right maxilla fragments; UCMP 129674, tooth crown and operculum fragment; UCMP 129676, tooth crown
Actinopteri - Lepisosteiformes - Lepisosteidae
Database 2005 3 specimens
Reptilia
Database 2005 1 specimen
Reptilia - Baenidae
Baenidae indet. Cope 1882
Database 2005 1 specimen
Reptilia - Testudines
Testudines indet. Batsch 1788
Database 2005 1 specimen
Reptilia - Testudines - Trionychidae
Database 2005 1 specimen
Reptilia
Database 2005 1 specimen
eggshell
Reptilia - Hadrosauridae
Database 2005 1 specimen
Mammalia - Multituberculata - Cimolomyidae
2 specimens
see common names

Geography
Country:United States State/province:Montana County:Garfield
Coordinates: 47.6° North, 107.0° West (view map)
Paleocoordinates:58.4° North, 65.2° West (Wright 2013)
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Maastrichtian 10 m.y. bin: Cretaceous 8
*Epoch:Senonian
Key time interval: Lancian
Age range of interval: 72.2 - 66 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Hell Creek
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: mudstone
Includes fossils?Y
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Collection methods:surface (float),field collection
Reason for describing collection:biostratigraphic analysis
Museum repositories:UCMP
Metadata
Also known as:UCMP V-76138
Database number:14520
Authorizer:J. Alroy, M. Carrano Enterer:J. Alroy, M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2002-05-15 00:00:00 Last modified:2025-02-22 15:12:02
Access level:the public Released:2002-05-15 00:00:00
Creative Commons license:CC0
Reference information

Primary reference:
960. 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]

Secondary references:

39778 L. J. Bryant. 1988. A new genus and species of Amiidae (Holostei; Osteichthyes) from the Late Cretaceous of North America, with comments on the phylogeny of the Amiidae. Journal of Vertebrate Paleontology 7(4):349-361 [G. Lloyd/G. Lloyd/M. Carrano]
13103 U.C.M.P. Database. 2005. UCMP collections database. University of California Museum of Paleontology [M. Carrano/M. Carrano/M. Carrano]