PBDB Collection

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

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Amphibia - Temnospondyli - Urodela

	Urodela indet. (Duméril 1805)	Gardner and DeMar 2013
Amphibia - Temnospondyli - Batrachosauroididae

	Opisthotriton kayi Auffenberg 1961	Gardner and DeMar 2013
Amphibia - Temnospondyli

	Anura indet. (Fischer von Waldheim 1813)	Gardner and DeMar 2013
Reptilia - Simoedosauridae

	Simoedosaurus sp. Gervais 1877	Gao and Fox 1998	1 specimen
	UALVP 33927 (partial left dentary)
	= Simoedosauridae indet. Lemone 1884	Brownstein 2022
Mammalia - Macroscelidea - Apheliscidae

	Litomylus orthronepius n. sp. Johnston and Fox 1984
	(1 measurement)
Mammalia - Condylarthra - Hyopsodontidae

	? Litaletes sp. Simpson 1935

	Bubogonia saskia n. sp. Johnston and Fox 1984
Mammalia - Primates - Purgatoriidae

	Purgatorius sp. Van Valen and Sloan 1965
	not P. janisae and possibly P. unio: Van Valen 1994
	= Purgatorius coracis n. sp. Fox and Scott 2011	Fox and Scott 2011
	UALVP 16070 - type (right m2); numerous referred UALVP specimens
Mammalia - Acreodi - Triisodontidae

	? Eoconodon sp. Matthew and Granger 1921
Mammalia - Carnivora

	Carnivora indet. Bowdich 1821	Fox et al. 2010
	UALVP 50993 (isolated left m1) and UALVP 50994 (isolated right m1)

	Ravenictis krausei n. sp. Fox and Youzwyshyn 1994	Fox and Youzwyshyn 1994
	presumably includes Carnivora indet. of Fox, which was said to be a new genus
Mammalia - Procreodi - Arctocyonidae

	Carcinodon aquilonius Russell 1974

	Baioconodon cf. denverensis Gazin 1941
	(1 measurement)

	Loxolophus schizophrenus n. sp. Johnston and Fox 1984
	(1 measurement)

	Oxyclaenus corax n. sp. Johnston and Fox 1984
	(5 measurements)
Mammalia - Periptychidae

	Anisonchus cf. oligistus Gazin 1941
	(1 measurement)

	Oxyacodon cf. agapetillus (Cope 1884)
Mammalia - Cimolestidae

	Procerberus sp. Sloan and Van Valen 1965
	said to be new

	Cimolestes cf. simpsoni (Reynolds 1936)
	original and current combination Puercolestes simpsoni
Mammalia - Proteutheria - Palaeoryctidae

	Palaeoryctes sp. Matthew 1913	Fox and Youzwyshyn 1994
	presumably includes additional palaeoryctid of Fox
Mammalia - Leptictidae

	Prodiacodon sp. Matthew 1929
	said to be new
Mammalia - Multituberculata - Eucosmodontidae

	Stygimys camptorhiza n. sp. Johnston and Fox 1984

	Cimexomys cf. hausoi Archibald 1982
	= Cimexomys cf. gratus Jepsen 1930	Alroy 2002
	recombined as Stygimys gratus
Mammalia - Multituberculata - Microcosmodontidae

	Microcosmodon arcuatus n. sp. Johnston and Fox 1984
	(1 measurement)
Mammalia - Multituberculata - Taeniolabididae

	Taeniolabis sp. Cope 1882
	= Catopsalis sp. Cope 1882	Buckley 1995
	compared by Buckley to C. waddleae
Mammalia - Multituberculata - Ptilodontidae

	Ptilodus cf. tsosiensis Sloan 1981
Mammalia - Multituberculata - Neoplagiaulacidae

	Neoplagiaulacidae indet. Ameghino 1890
	said to be a new genus

	Ectypodus sp. Matthew and Granger 1921

	Parectypodus sp. Jepsen 1930

	Parectypodus armstrongi n. sp. Johnston and Fox 1984

	Mesodma thompsoni Clemens 1964
	= Mesodma sp. Jepsen 1940	Fox 2002
	said to be a new species also found at French Fry (see)

	Mesodma formosa (Marsh 1889)	Fox 1989
	may include additional Mesodma sp., said to be new

	Xyronomys sp. Rigby 1980

	Neoplagiaulax kremnus n. sp. Johnston and Fox 1984
Mammalia - Multituberculata

	Cimexomys cf. 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

Lithology and environment

Primary lithology:	gray lithified sandstone
Secondary lithology:	pebbly conglomerate
Includes fossils?	Y
Lithology description: "resistant cemented greyish sand with discontinuous fossiliferous clay pebble conglomerate at base"
Environment:	terrestrial indet.

Taphonomy

Modes of preservation:	body
Size of fossils:	mesofossils
Preservation of anatomical detail:	good
Fragmentation:	occasional
Spatial resolution:	parautochthonous

Collection methods and comments

Collection methods:	bulk,sieve,field collection
Collection size:	905 specimens
Reason for describing collection:	taxonomic analysis
Collectors:	P. Johnston
Taxonomic list comments:directly overlies Long Fall Horizon, but there is no evidence that any of the species are reworked from Cretaceous sediments. Manuscript appears to post-date Fox 1989; supersedes Johnston and Fox 1984

Metadata

Also known as:	Medicine Hat Brick and Tile (MHBT) Quarry (in part)
Database number:	14768
Authorizer:	J. Alroy, P. Holroyd, P. Mannion, R. Benson	Enterer:	J. Alroy, P. Holroyd, R. Benson, P. Mannion
Modifier:	M. Carrano	Research group:	vertebrate
Created:	1993-02-18 00:00:00	Last modified:	2013-06-18 16:03:17
Access level:	the public	Released:	1993-02-18 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

1536.

R. C. Fox. 1990. The succession of Paleocene mammals in western Canada. Geological Society of America Special Paper 243:51-70 [J. Alroy/J. Alroy/M. Uhen]

Secondary references:

6294		J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
82414		C. D. Brownstein. 2022. High morphological disparity in a bizarre Paleocene fauna of predatory freshwater reptiles. BMC Ecology and Evolution 22:34:1-23 [P. Mannion/P. Mannion]
1149		G. A. Buckley. 1995. The multituberculate Catopsalis from the early Paleocene of the Crazy Mountains Basin in Montana. Acta Palaeontologica Polonica 40(4):389-398 [J. Alroy/J. Alroy/P. Mannion]
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]
6717		R. C. Fox. 2002. The oldest Cenozoic mammal?. Journal of Vertebrate Paleontology 22(2):456-459 [J. Alroy/J. Alroy/J. Alroy]
42829		R. C. Fox, C. S. Scott, and B. D. Rankin. 2010. New early carnivoran specimens from the Puercan (earliest Paleocene) of Saskatchewan, Canada. Journal of Paleontology 84(6):1035-1039 [P. Mannion/P. Mannion]
42853		R. C. Fox and C. S. Scott. 2011. A new, early Puercan (earliest Paleocene) species of Purgatorius (Plesiadapiformes, Primates) from Saskatchewan, Canada. Journal of Paleontology 85(3):537-548 [P. Mannion/P. Mannion]
1542		R. C. Fox and G. P. Youzwyshyn. 1994. New primitive carnivorans (Mammalia) from the Paleocene of western Canada, and their bearing on relationships of the order. Journal of Vertebrate Paleontology 14(3):382-404 [J. Alroy/J. Alroy/J. Marcot]
37894		K. -Q. Gao and R. C. Fox. 1998. New choristoderes (Reptilia: Diapsida) from the Upper Cretaceous and Palaeocene, Alberta and Saskatchewan, Canada, a phylogenetic relationships of Choristodera. Zoological Journal of the Linnean Society 124:303-353 [R. Benson/R. Benson]
65027		J. D. Gardner and D. G. DeMar. 2013. Mesozoic and Palaeocene lissamphibian assemblages of North America: a comprehensive review. Palaeobiodiversity and Palaeoenvironments 93:459-515 [P. Holroyd/P. Holroyd/M. Carrano]