Also known as Cook's "Pocket"
Where: Sioux County, Nebraska (42.4° N, 103.8° W: paleocoordinates 43.3° N, 98.8° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Basal Member (Marsland Formation), Harrisonian (24.8 - 18.5 Ma)
• "basal member of Upper Harrison Beds"
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Collection methods: quarrying
Primary reference: H. J. Cook. 1908. A new genus of rhinoceros from Sioux County, Nebraska. Nebraska Geological Survey Bulletin 3(6):245-248 [J. Alroy/J. Alroy/J. Marcot]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 17744: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
•this is the same as "4 miles northeast of Agate postoffice" according to Hunt 1972
•"Mesocyon venator" is NOT from this site: Stevens 1991
possibly relevant:
• Tomarctus thompsoni from "Three miles northeast of Agate": Cook and Macdonald 1962
• Aletomeryx marshi Frick 1937: "from the Harrison, three miles northeast of Agate"
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Barbouromeryx trigonocorneus7 Barbour and Schultz 1934 ruminant "Upper Harrison... about four miles northeast of Agate"
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