Quarry 5, Como Bluff (YPM): Kimmeridgian - Tithonian, Wyoming
collected by W. Reed

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Pterodactylus montanus n. sp. Marsh 1878
Marsh 1878 1 individual
nomen dubium belonging to Pterodactyloidea
YPM 2020 (holotype), wing metacarpal
Camptosaurus sp. Marsh 1885
Foster 2003 1 individual
Reptilia - Dryosauridae
Laosaurus altus n. sp. Marsh 1878
1 individual
recombined as Dryosaurus altus
YPM 1876 (4 measurements)
Reptilia - Theropoda
Theropoda indet. Marsh 1881
Foster 2003 1 individual
Reptilia - Camarasauridae
Camarasaurus sp. Cope 1877
Foster 2003 1 individual
Reptilia
Diplodocus sp. Marsh 1878
Ostrom and McIntosh 1999 1 individual
see common names

Geography
Country:United States State/province:Wyoming County:Carbon
Coordinates: 41.9° North, 106.1° West (view map)
Paleocoordinates:37.4° North, 52.2° West
Basis of coordinate:stated in text
Altitude:2129 meters
Geographic resolution:small collection
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 part of formation
Lithology and environment
Primary lithology:medium,coarse sandstone
Includes fossils?Y
Lithology description: "medium to coarse-grained sandstone"
Environment:wet floodplain
Geology comments: poorly drained floodplain
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:good
Associated major elements:some
Collection methods and comments
Collection methods:selective quarrying,mechanical,field collection
Reason for describing collection:general faunal/floral analysis
Museum repositories:YPM
Collectors:W. Reed
Metadata
Also known as:WY-26
Database number:39344
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2004-05-26 15:06:52 Last modified:2023-07-20 12:17:44
Access level:the public Released:2004-05-26 15:06:52
Creative Commons license:CC BY
Reference information

Primary reference:
7803. O. C. Marsh. 1878. Principal characters of American Jurassic dinosaurs. Part I. American Journal of Science and Arts 16:411-416 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

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]
24821ETE P. M. Galton. 2007. Teeth of ornithischian dinosaurs (mostly Ornithopoda) from the Morrison Formation (Upper Jurassic) of the western United States. In K. Carpenter (ed.), Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs 17-47 [M. Carrano/M. Carrano/M. Carrano]
31014 O. C. Marsh. 1878. New pterodactyl from the Jurassic of the Rocky Mountains. American Journal of Science 16:233-234 [R. Butler/R. Butler]
9097 O. C. Marsh. 1894. The typical Ornithopoda of the American Jurassic. American Journal of Science, series 3 48:85-90 [M. Carrano/M. Carrano/M. Carrano]
10618 J. H. Ostrom and J. S. McIntosh. 1999. Marsh's Dinosaurs: The Collections from Como Bluff. Yale University Press, New Haven 1-388 [M. Carrano/M. Carrano/M. Carrano]
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]