Long Fall Horizon, Rav W-1: Puercan, Canada
collected by P. Johnston 1979

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Condylarthra - Hyopsodontidae
? Hyopsodontidae indet. Trouessart 1879
Mammalia - Procreodi - Arctocyonidae
Protungulatum cf. donnae Sloan and Van Valen 1965
Ragnarok sp. Van Valen 1978
    = Baioconodon sp. Gazin 1941
Alroy 2002
replaces ID of Johnston and Fox 1984
Mimatuta sp. Van Valen 1978
Oxyprimus cf. erikseni Van Valen 1978
Mammalia - Cimolestidae
Procerberus cf. formicarum Sloan and Van Valen 1965
Mammalia - Multituberculata - Eucosmodontidae
Cimexomys cf. hausoi Archibald 1982
    = Cimexomys cf. gratus Jepsen 1930
Alroy 2002
recombined as Stygimys gratus
Stygimys cupressus n. sp. Fox 1989
synonym of Stygimys kuszmauli
includes "S. sp." of Fox 1990, said to be new
Mammalia - Multituberculata - Microcosmodontidae
Microcosmodontinae indet. (Holtzman and Wolberg 1977)
original and current combination Microcosmodontidae
Mammalia - Multituberculata - Taeniolabididae
Catopsalis cf. joyneri Sloan and Van Valen 1965
recombined as Valenopsalis joyneri
Catopsalis johnstoni n. sp. Fox 1989
(1 measurement)
    = Catopsalis foliatus Cope 1882
Alroy 2002
includes "C. sp." of Fox 1990 said to be new
Mammalia - Multituberculata
Cimexomys minor Sloan and Van Valen 1965
see common names

Geography
Country:Canada State/province:Saskatchewan
Coordinates: 49.5° North, 109.2° West (view map)
Paleocoordinates:56.2° North, 83.4° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Paleocene
Stage:Danian 10 m.y. bin:Cenozoic 1
*Period:Tertiary
Key time interval:Puercan
Age range of interval:66.00000 - 63.80000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Ravenscrag
Local section:Cypress Hills Local bed:3
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: upper horizon - once thought to include reworked Cretaceous fossils, but fresh exposures confirm separation of horizons.
Lithology and environment
Primary lithology: "siliciclastic"
Environment:fine channel fill
Geology comments: point bar deposit
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Collection methods:selective quarrying,surface (in situ),field collection
Collection size:50 specimens
Reason for describing collection:biostratigraphic analysis
Collectors:P. Johnston Collection dates:1979
Metadata
Also known as:Medicine Hat Brick and Tile Quarry (MHBT Quarry), in part
Database number:14756
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:M. Carrano Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2012-04-17 10:46:30
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
1535. R. C. Fox. 1989. The Wounded Knee local fauna and mammalian evolution near the Cretaceous-Tertiary boundary, Saskatchewan, Canada. Palaeontographica Abteilung A 208(1-3):11-59 [J. Alroy/J. Alroy/M. Carrano]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
41188 R. C. Fox. 1997. Late Cretaceous and Paleocene mammals, Cypress Hills region, Saskatchewan, and mammalian evolution across the Cretaceous–Tertiary boundary. In L. McKenzie-McAnally (ed.), Canadian Paleontology Conference VII, Saskatoon. Field Trip Guidebook No. 6: Upper Cretaceous and Tertiary Stratigraphy and Paleontology of Southern Saskatchewan. Geological Association of Canada 70-85 [M. Carrano/M. Carrano]