PBDB Collection

Luck O Hutch: Puercan, Montana

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Multituberculata - Neoplagiaulacidae

	Mesodma sp. Jepsen 1940

	Mesodma thompsoni Clemens 1964	Smith et al. 2018	16 specimens

	Mesodma hensleighi Lillegraven 1969	Smith et al. 2018	1 specimen

	Mesodma formosa (Marsh 1889)	Smith et al. 2018	11 specimens
Mammalia - Multituberculata

	Cimexomys minor Sloan and Van Valen 1965	Smith et al. 2018	1 specimen
Mammalia - Multituberculata - Eucosmodontidae

	Cimexomys gratus (Jepsen 1930)	Smith et al. 2018	3 specimens
Mammalia - Procreodi - Arctocyonidae

	Mimatuta sp. Van Valen 1978	Smith et al. 2018	1 specimen

	? Mimatuta sp. Van Valen 1978
	= Mimatuta morgoth Van Valen 1978	Smith et al. 2018
	1 specimen

	Protungulatum donnae Sloan and Van Valen 1965	Smith et al. 2018	4 specimens
Mammalia - Periptychidae

	Periptychidae indet. Cope 1882	Smith et al. 2018	1 specimen
Mammalia - Leptictidae

	? Prodiacodon crustulum Novacek 1977	Smith et al. 2018	1 specimen
Mammalia - Cimolestidae

	Procerberus cf. grandis Middleton and Dewar 2004	Smith et al. 2018	2 specimens

	Procerberus sp. Sloan and Van Valen 1965
	= Procerberus formicarum Sloan and Van Valen 1965	Smith et al. 2018
	1 specimen
see common names

Geography

Country:	United States	State/province:	Montana	County:	McCone
Coordinates:	47.8° North, 106.1° West (view map)
Paleocoordinates:	57.5° North, 66.5° West (Wright 2013)
Basis of coordinate:	based on political unit
Geographic resolution:	small collection

Time

Period:	Paleogene	Epoch:	Paleocene
Stage:	Danian	10 m.y. bin:	Cenozoic 1
*Period:	Tertiary
Key time interval:	Puercan	Mammal zone:	Pu1
Age range of interval:	66 - 63.8 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:

Fort Union

Member:

Tullock

Lithology and environment

Primary lithology:	not reported
Environment:	terrestrial indet.

Taphonomy

Modes of preservation:	body
Size of fossils:	macrofossils,mesofossils

Collection methods and comments

Reason for describing collection:	biostratigraphic analysis
Museum repositories:	UCMP
Taxonomic list comments:one of only two Tullock localities in Lofgren's field area overlies the MCZ coal, dated by Swisher et al. 1993 at 65.03 +/- 0.04 Ma (SCLF AA on sanidine)

Metadata

Also known as:	UCMP V-88306; V88036
Database number:	14759
Authorizer:	J. Alroy, P. Holroyd	Enterer:	J. Alroy, P. Holroyd
Modifier:	P. Mannion	Research group:	vertebrate
Created:	1997-04-12 00:00:00	Last modified:	2025-02-22 15:12:02
Access level:	the public	Released:	1997-04-12 00:00:00
Creative Commons license:	CC0

Reference information

Primary reference:

2255.

D. L. Lofgren. 1995. The Bug Creek problem and the Cretaceous-Tertiary transition at McGuire Creek, Montana. University of California Publications in Geological Sciences 140:1-185 [J. Alroy/J. Alroy/M. Carrano]

Secondary references:

85522		J. R. Claytor, L. N. Weaver, T. S. Tobin and G. P. Wilson Mantilla. 2023. New mammalian local faunas from the first ca. 80 ka of the Paleocene in northeastern Montana and a revised model of biotic recovery from the Cretaceous–Paleogene mass extinction. Journal of Vertebrate Paleontology e2222777 [P. Mannion/P. Mannion]
65846		S. M. Smith, C. J. Sprain, W. A. Clemens, D.L. Lofgren, P. R. Renne and G. P. Wilson. 2018. Early mammalian recovery after the end-Cretaceous mass extinction: A high-resolution view from McGuire Creek area, Montana, USA . Geological Society America Bulletin 130(11-12):2000-2014 [P. Holroyd/P. Holroyd/P. Mannion]