Quarry 11, Como Bluff (YPM): Kimmeridgian - Tithonian, Wyoming
collected by W. Reed 1879-1880

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Brontosaurus amplus n. sp. Marsh 1881
1 individual
synonym of Brontosaurus excelsus
YPM 1981
Reptilia - Stegosauridae
Stegosaurus ungulatus Marsh 1879
Marsh 1887 1 specimen
"originally referred by the writer" to this taxon
    = Stegosaurus duplex n. sp. Marsh 1887
Marsh 1887
YPM 1858
Mammalia
Mammalia indet. Linnaeus 1758
Ostrom and McIntosh 1999
unidentified tooth
see common names

Geography
Country:United States State/province:Wyoming County:Albany
Coordinates: 41.9° North, 106.0° West (view map)
Paleocoordinates:37.5° North, 52.2° West
Basis of coordinate:stated in text
Altitude:2091 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 middle part of formation
Lithology and environment
Primary lithology: mudstone
Includes fossils?Y
Environment:wet floodplain
Geology comments: poorly drained floodplain
Taphonomy
Modes of preservation:body
Degree of concentration:concentrated
Size of fossils:macrofossils
Spatial orientation:random
Preservation of anatomical detail:excellent
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 Collection dates:1879-1880
Metadata
Also known as:WY-18
Database number:39369
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2004-05-27 06:09:43 Last modified:2023-08-23 15:45:25
Access level:the public Released:2004-05-27 06:09:43
Creative Commons license:CC BY
Reference information

Primary reference:

7816. O. C. Marsh. 1881. Principal characters of American Jurassic dinosaurs. Part V. The American Journal of Science and Arts, series 3 21:417-423 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

17535ETE K. Carpenter and P. M. Galton. 2001. Othniel Charles Marsh and the myth of the eight-spiked Stegosaurus. In K. Carpenter (ed.), The Armored Dinosaurs. Indiana University Press, Bloomington 76-102 [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]
76171 P. M. Galton. 2010. Species of plated dinosaur Stegosaurus (Morrison Formation, Late Jurassic) of western USA: new type species designation needed. Swiss Journal of Geosciences 103:187-198 [M. Carrano/M. Carrano]
62949 E. Hennig. 1915. Fossilium Catalogus. I: Animalia. Pars 9: Stegosauria 1-16 [M. Carrano/M. Carrano/M. Carrano]
14174ETE R. S. Lull. 1910. Stegosaurus ungulatus Marsh, recently mounted at the Peabody Museum of Yale University. The American Journal of Science, series 4 30(180):361-377 [M. Carrano/M. Carrano/M. Carrano]
29301ETE S. C. R. Maidment, D. B. Norman, P. M. Barrett and P. Upchurch. 2008. Systematics and phylogeny of Stegosauria (Dinosauria: Ornithischia). Journal of Systematic Palaeontology 6(4):367-407 [M. Carrano/M. Carrano]
10619ETE O. C. Marsh. 1887. Principal characters of American Jurassic dinosaurs. Part IX. The skull and dermal armor of Stegosaurus. American Journal of Science 34:413-417 [M. Carrano/M. Carrano/M. Carrano]
10726ETE J. S. McIntosh. 1995. Remarks on the North American sauropod Apatosaurus Marsh. Sixth Symposium on Mesozoic Terrestrial Ecosystems and Biota, Short Papers, A. Sun and Y. Wang (eds.), China Ocean Press, Beijing 119-123 [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]