PBDB Collection

Dickinson Member (Savanna): Orellan, North Dakota

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Leptictidae

	Leptictis dakotensis (Leidy 1868)
Mammalia - Leptomerycidae

	Leptomeryx evansi Leidy 1853
	may include Fitterer Ranch material of Heaton and Emry 1996
Mammalia - Camelidae

	Poebrotherium sp. Leidy 1847
	probably P. wilsoni of Honey et al. 1998 from Stark Co.
Mammalia - Carnivora - Nimravidae

	Dinictis sp. (Leidy 1854)
Mammalia - Carnivora - Amphicyonidae

	Daphoenus sp. Leidy 1853
Mammalia - Carnivora - Canidae

	Hesperocyon sp. Scott 1890
Mammalia - Lagomorpha - Leporidae

	Megalagus sp. Walker 1931

	Palaeolagus haydeni Leidy 1856
Mammalia - Rodentia - Ischyromyidae

	Ischyromys typus Leidy 1856
Mammalia - Rodentia - Cricetidae

	Eumys elegans Leidy 1856
Reptilia - Testudines - Trionychidae

	Apalone leucopotamica (Cope 1891)	Vitek and Joyce 2015
	original and current combination Trionyx leucopotamicus
unclassified

	Quinetia frigidaria n. sp. Czaplewski et al. 2019	Czaplewski et al. 2019
see common names

Geography

Country:	United States	State/province:	North Dakota	County:	Stark
Coordinates:	46.9° North, 102.8° West (view map)
Paleocoordinates:	48.0° North, 94.2° West
Basis of coordinate:	based on political unit

Time

Period:	Paleogene	Epoch:	Oligocene
Stage:	Rupelian	10 m.y. bin:	Cenozoic 4
*Period:	Tertiary
Key time interval:	Orellan
Age range of interval:	33.90000 - 31.80000 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:	Brule
Stratigraphic resolution:	member

Lithology and environment

Environment:

terrestrial indet.

Taphonomy

Modes of preservation:

body

Collection methods and comments

Taxonomic list comments:does not include Fitterer Bed Quarry (see)
probably includes most or all of Little Bad Lands list of Douglass 1909b and other Little Badlands records
H & L list several new records of unclear provenance
the following Orellan records from Hoganson and Lammers 1985 are of unclear status: cf. "Protosciurus" sp. cf. Paradjidaumo sp. cf. Heliscomys sp. Caenopus sp. cf. Hyracodon sp.
Orellan taxa listed by Kihm and Lammers 1986: ? Cedromus sp. ? Hoplophoneus sp. ? Eusmilus sp. ? Amphicyonidae indet. "Diceratherium" tridactylum Entelodontidae indet. ("Entelodon sp.") ? Hypertragulus sp. multiple oreodonts of Schultz and Falkenbach, e.g.
Orellan taxa listed by Lammers and Hoganson 1988: Hyaenodon crucians Hyaenodon horridus
supposed Whitneyan fauna of Kihm and Lammers 1986 is of unstated provenance and may correspond to "Upper White River" fauna of Douglass 1909b including rhinos, oreodonts, and "Mesohippus" Eumys brachyodus Kihm 1990 is from Schmidt Ranch, of uncertain stratigraphic relation to the other Stark Co. localities Palaeocastor nebrascensis Xu 1996: "AMNH Loc. 5 of Hough, Stark Co." "Brontotheriid" of Lammers and Hoganson from "Little Bad Lands" is of uncertain stratigraphic provenance
"Fitterer Ranch" no further data: Parictis sp. Hunt 1998a: "Fitterer Ranch, SW of Dickinson"
"Adjidaumo douglassi" - see Korth and Bailey 1992

Metadata

Also known as:	Obritsch Ranch; Fitterer Ranch
Database number:	17100
Authorizer:	J. Alroy, C. Boyd, P. Mannion	Enterer:	J. Alroy, P. Mannion, J. Person
Research group:	vertebrate
Created:	1993-09-27 00:00:00	Last modified:	2002-06-03 03:27:41
Access level:	the public	Released:	1993-09-27 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

1923.

J. W. Hoganson and G. E. Lammers. 1992. Vertebrate fossil record, age, and paleoenvironmental setting of the Brule Formation (Oligocene) in North Dakota. Proceedings of the F. D. Holland, Jr., Geological Symposium 243-255 [J. Alroy/J. Alroy/J. Marcot]

Secondary references:

71276		N. J. Czaplewski, J. Person, C. Boyd and R. J. Emry. 2019. A new species of bat (Chiroptera: Vespertilionidae) from the early Oligocene global cooling period, Brule Formation, North Dakota, USA. Palaeo Vertebrata 42(2) [C. Boyd/J. Person]
63467		N. S. Vitek and W. G. Joyce. 2015. A Review of the Fossil Record of New World Turtles of the Clade Pan-Trionychidae. Bulletin of the Peabody Museum of Natural History 56(2):185-244 [P. Mannion/P. Mannion]