Also known as Round Top, in part
Where: Sioux County, Nebraska (42.4° N, 103.8° W: paleocoordinates 43.6° N, 95.7° W)
• coordinate based on political unit
• local area-level geographic resolution
When: lower Orella Member (Brule Formation), Orellan (33.9 - 33.3 Ma)
Environment/lithology: terrestrial
Reposited in the AMNH
Primary reference: C. B. Schultz and C. H. Falkenbach. 1956. Miniochoerinae and Oreonetinae two new subfamilies of oreodonts. Bulletin of the American Museum of Natural History 109(4):373-482 [J. Alroy/J. Alroy/J. Marcot]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 17262: authorized by John Alroy, entered by John Alroy on 05.08.1996
Creative Commons license: CC BY (attribution)
Taxonomic list
•Nanodelphys "minutus" Hough 1961: "Round Top"
•Centetodon marginalis Lillegraven et al. 1981: "Round Top, middle Oreodon level" (said to be Orellan by Asher et al. 2005)
•Heliscomys hatcheri Wood 1939: "Round Top, sec 36 T33N R53W, N of Crawford, Sioux Co... Upper Oreodon Zone"
•Hesperocyon sp. Bryant 1993 "Round Top" Orellan
•Daphoenus sp. Hunt 1998b: "Orella Member... Roundtop area, Dawes Co."
•Drassonax harpagops Baskin and Tedford 1996: Parictis primaevus of Clark and Guensburg 1972 from "Base of the Orella Member... Roundtop, 7 mi north of Crawford, Dawes Co."; Round Top is in Sioux Co. at least 7 mi W and 9 mi N of Crawford
| Mammalia | |
"Miniochoerus (Paraminiochoerus) affinis" = Miniochoerus affinis, "Merycoidodon culbertsoni" = Merycoidodon culbertsonii
"Miniochoerus (Paraminiochoerus) affinis" = Miniochoerus affinis Leidy 1869 oreodont
"Merycoidodon culbertsoni" = Merycoidodon culbertsonii Leidy 1848 oreodont "Merycoidodon culbertsoni osborni":
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