Occurrence of North American Porcupine (Erethizon dorsatum) in the Black Hills, South Dakota

2020 ◽  
Vol 80 (2) ◽  
pp. 257
Author(s):  
Lenora M. Dombro ◽  
Earl Perez-Foust ◽  
Daniel Roddy ◽  
Daryl E. Mergen ◽  
Robert A. Gitzen
Keyword(s):  
South Dakota ◽  
North American ◽  
Black Hills ◽  
Erethizon Dorsatum

Additional information on lowest Ordovician trilobites from the uppermost Deadwood Formation, Black Hills and Bear Lodge Mountains, South Dakota and Wyoming

2000 ◽  
Vol 74 (2) ◽  
pp. 360-362 ◽  
Author(s):  
James H. Stitt
Keyword(s):  
South Dakota ◽  
North American ◽  
Black Hills ◽  
American Continent ◽  
Upper Cambrian ◽  
Additional Information ◽  
North American Continent ◽  
The North

Trilobites from the Missisquoia Zone and the Symphysurina brevispicata Subzone of the Symphysurina Zone (Ibexian Series, lowest Ordovician) were collected from measured sections in the uppermost Deadwood Formation in the Black Hills of South Dakota and Bear Lodge Mountains in northeasternmost Wyoming. These collections were made by Christina Lochman-Balk and her students, and turned over to the author to complete the project. They are compared with previous reported occurrences of this fauna from this area. No trilobites from the underlying Sunwaptan Stage (Upper Cambrian) occur with the lowest Ordovician trilobites, suggesting that the sharp faunal extinction at the base of the Ordovician (North American sense = Eurekia apopsis Zone, Ibexian Series) occurred in the Deadwood Formation as it did over all of the North American continent.

Selected hydrologic data, through water year 1998, Black Hills Hydrology Study, South Dakota

2000 ◽  
Author(s):  
Daniel G. Driscoll ◽  
Wendell L. Bradford ◽  
Michael J. Moran
Keyword(s):  
South Dakota ◽  
Black Hills ◽  
Hydrologic Data
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