Cottonwood Creek Dinosaur Trail (Tate-UW): Late/Upper Kimmeridgian - Tithonian, Wyoming
collected by M. Marsh & K. Sundell 1991, 1993

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Camarasauridae
? Camarasaurus sp. Cope 1877
1 individual
    = Camarasaurus sp. Cope 1877
Turner and Peterson 1999
Reptilia
Diplodocus sp. Marsh 1878
Turner and Peterson 1999 1 individual
Ornithopoda indet.
1 individual
UW24823
    = cf. Dryosaurus sp. Marsh 1894
Turner and Peterson 1999
    = Othnielia sp. Galton 1977
Foster 2003
    = cf. Othnielia sp. Galton 1977
Lovelace 2006
    = Nanosaurus agilis Marsh 1877
Carpenter and Galton 2018
Reptilia - Theropoda
? Theropoda indet. (Marsh 1881)
1 individual
see common names

Geography
Country:United States State/province:Wyoming County:Natrona
Coordinates: 42.5° North, 106.7° West (view map)
Paleocoordinates:38.3° North, 52.9° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Jurassic Epoch:Late/Upper Jurassic
Key time interval:Late/Upper Kimmeridgian - Tithonian
Age range of interval:152.20000 - 145.00000 m.y. ago
Stratigraphy
Formation:Morrison
Stratigraphic resolution:group of beds
Stratigraphy comments: upper part of formation, across some tens of meters
Lithology and environment
Primary lithology:medium,coarse sandstone
Secondary lithology: mudstone
Includes fossils?Y
Includes fossils?Y
Lithology description: "medium-coarse grained channel sandstone"
Environment:coarse channel fill
Geology comments: "channel"; "high-energy fluvial environment"
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:macrofossils
Preservation of anatomical detail:good
Articulated whole bodies:all
Fragmentation:occasional
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:UW
Collectors:M. Marsh & K. Sundell Collection dates:1991, 1993
Metadata
Also known as:Alcova Lake, WY-1, WY-2, WY-3
Database number:74663
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2007-08-23 08:58:58 Last modified:2023-08-23 14:16:56
Access level:the public Released:2007-08-23 08:58:58
Creative Commons license:CC BY
Reference information

Primary reference:
81840. K. A. Sundell. 1994. The Cottonwood Creek dinosaur trail. In G. E. Nelson (ed.), Wyoming Geological Association Forty-Fourth Annual Field Conference. Wyoming Geological Association Guidebook 44:9-11 [M. Carrano/M. Carrano]

Secondary references:

75856 K. Carpenter and P. M. Galton. 2018. A photo documentation of bipedal ornithischian dinosaurs from the Upper Jurassic Morrison Formation, USA. Geology of the Intermountain West 5:167-207 [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]
25141ETE D. M. Lovelace. 2006. An articulated partial postcranial skeleton of a small ornithopod (C.F. Othnielia) dinosaur (Morrison Formation, Alcova, Wyoming). Journal of Vertebrate Paleontology 26(3, suppl.):91A [M. Carrano/M. Carrano/J. Alroy]
13281ETE C. E. Turner and F. Peterson. 1999. Biostratigraphy of dinosaurs in the Upper Jurassic Morrison Formation of the Western Interior, U.S.A. In D. D. Gillette (ed.), Vertebrate Paleontology in Utah, Utah Geological Survey Miscellaneous Publication 99-1:77-114 [M. Carrano/M. Carrano/M. Carrano]