Where: Park County, Wyoming (44.3° N, 109.0° W: paleocoordinates 50.2° N, 88.7° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Fort Union Formation, Tiffanian (61.7 - 56.8 Ma)
• from "a thin (2-12 cm) siltstone layer" between Princeton Quarry (680 m level) and Holly's Microsite (1280 m level) and in the "upper part of the Plesiadapis simonsi Zone," which ranges from below 680 m to about 960 m (see Rose 1981); placed at "80 m stratigraphically above Princeton Quarry" (i.e., 760 m) by Secord et al. 2002
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; siltstone
Size classes: macrofossils, mesofossils
Collection methods: bulk, quarrying, sieve,
• "98 mammalian jaws and jaw fragments, and 265 isolated teeth"
Primary reference: R. Secord. 2002. The Y2K Quarry, a new diverse latest Tiffanian (late Paleocene) mammalian assemblage from the Fort Union Formation in the northern Bighorn Basin, Wyoming. Journal of Vertebrate Paleontology 22(3):105A [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 26569: authorized by John Alroy, entered by John Alroy on 17.10.2002, edited by K. Christopher Beard and Patricia Holroyd
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Multituberculata indet. Cope 1884 multituberculate | |
| |
| |
Ectypodus powelli Jepsen 1940 multituberculate | |
| |
Palaeoryctes jepseni n. sp.2
| |
| |
| |
| |
| |
"Micromomys millennius n. sp." = Dryomomys millennius3
| |
Carpolestes dubius Jepsen 1930 primate | |
| |
Mylanodon rosei n. gen. n. sp.4
| |
Viverravus schaffi3 Gingerich and Winkler 1985 placental Based on UM 109185, LM/1; UM 109327, LM/2; UM 109484, RM/1
| |
Claenodon sp. Scott 1892 condylarth | |
| |
| |
Plagioctenodon sp. Bown 1979 placental |