Freezeout Hills Quarry 6 (FMNH): Kimmeridgian - Tithonian, Wyoming
collected by S. Williston, E. Riggs, H. Menke, C. Gilmore 1899

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Megalosauridae
Torvosaurus tanneri Galton and Jensen 1979
Hanson and Makovicky 2013 1 individual
FMNH PR 3060: three midline fragments of gastralia, right metacarpal III, right manual phalanx III-2, left metatarsals II –IV, left pedal phalanx I-1.
Reptilia
Allosaurus sp. Marsh 1877
1 individual
"Creosaurus" in Riggs's 1899 field notes
Camptosaurus sp. Marsh 1885
Reptilia - Stegosauridae
Stegosaurus sp. Marsh 1877
Hanson and Makovicky 2013 1 specimen
plate, from Riggs's 1899 field notes
Reptilia
Apatosaurus sp. Marsh 1877
Fiorillo 1998 1 individual
Reptilia - Camarasauridae
Camarasaurus sp. Cope 1877
Hanson and Makovicky 2013
"Morosaurus" from Riggs's 1899 field notes
see common names

Geography
Country:United States State/province:Wyoming County:Carbon
Coordinates: 42.0° North, 106.4° West (view map)
Paleocoordinates:37.6° North, 52.5° West
Basis of coordinate:estimated from map
Altitude:2211 meters
Geographic resolution:outcrop
Time
Period:Jurassic Epoch:Late/Upper Jurassic
Key time interval:Kimmeridgian - Tithonian
Age range of interval:154.80000 - 145.00000 m.y. ago
Stratigraphy
Formation:Morrison
Stratigraphic resolution:bed
Stratigraphy comments: upper third of formation
Lithology and environment
Primary lithology:ferruginous,gray silty claystone
Includes fossils?Y
Lithology description: "greyish, grainy clay matrix and some reddish iron deposits"
Environment:wet floodplain
Taphonomy
Modes of preservation:body
Degree of concentration:concentrated
Size of fossils:macrofossils,mesofossils
Preservation of anatomical detail:good
Fragmentation:occasional
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:selective quarrying,surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:CM,FMNH
Collectors:S. Williston, E. Riggs, H. Menke, C. Gilmore Collection dates:1899
Metadata
Also known as:Carnegie Quarry M, University of Kansas Loc. 17
Database number:57894
Authorizer:M. Carrano, P. Mannion Enterer:K. Maguire, M. Carrano, J. Tennant
Modifier:M. Carrano Research group:taphonomy,vertebrate
Created:2006-01-05 14:00:39 Last modified:2021-11-10 10:09:56
Access level:the public Released:2006-01-05 14:00:39
Creative Commons license:CC BY
Reference information

Primary reference:
78581. J. S. McIntosh. 1990. The second Jurassic dinosaur rush. Earth Sciences History 9(1):22-27 [M. Carrano/M. Carrano]

Secondary references:

15177ETE A. R. Fiorillo. 1998. Bone modification features on sauropod remains (Dinosauria) from the Freezeout Hills Quarry N (Morrison Formation) of southeastern Wyoming and their contribution to fine-scale paleoenvironmental interpretation. Modern Geology 23(1-4):111-126 [M. Carrano/M. Carrano]
15179ETE J. R. Foster. 2003. Paleoecological analysis of the vertebrate fauna of the Morrison Formation (Upper Jurassic), Rocky Mountain region, U.S.A. New Mexico Museum of Natural History and Science Bulletin 23:1-95 [M. Carrano/M. Carrano]
69484 J. R. Foster and J. E. Peterson. 2016. First report of Apatosaurus (Diplodocidae: Apatosaurinae) from the Cleveland-Lloyd Quarry in the Upper Jurassic Morrison Formation of Utah: abundance, distribution, paleoecology, and taphonomy of an endemic North American sauropod clade. Palaeoworld 25:431-443 [M. Carrano/M. Carrano]
49550 M. Hanson and P. J. Makovicky. 2013. A new specimen of Torvoaurus tanneri originally collected by Elmer Riggs. Historical Biology 26(6):775-784 [P. Mannion/J. Tennant/M. Carrano]