Horse Mountain Gryposaur Quarry: Late/Upper Campanian, Utah
collected by S. Richardson 2007–2010

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Baenidae
Arvinachelys goldeni n. gen., n. sp. Lively 2015
Lively 2015 1 specimen
UMNH VP 21151, type specimen
Reptilia
Alligatoroidea indet. (Gray 1844)
Loewen et al. 2013 1 individual
Reptilia - Ankylosauridae
Ankylosauridae informal indet. B Brown 1908
Loewen et al. 2013 1 individual
UMNH VP 20202
Reptilia - Ceratopsidae
Chasmosaurinae indet. Lambe 1915
1 individual
"Kaiparowits new taxon A"
Reptilia - Hadrosauridae
Gryposaurus sp. Lambe 1914
Loewen et al. 2013 1 individual
Reptilia
? Theropoda indet. (Marsh 1881)
Loewen et al. 2013
"possible small theropod material"
see common names

Geography
Country:United States State/province:Utah County:Kane
Coordinates: 37.5° North, 111.7° West (view map)
Paleocoordinates:45.5° North, 82.9° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
Key time interval:Late/Upper Campanian
Age range of interval:83.50000 - 70.60000 m.y. ago
Stratigraphy
Formation:Kaiparowits
Local section:GS-ENM Local bed:225 m
Local order:bottom to top
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: silty mudstone
Includes fossils?Y
Lithology description: "silty mudstone"
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:macrofossils
Preservation of anatomical detail:medium
Fragmentation:frequent
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:selective quarrying,surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Collectors:S. Richardson Collection dates:2007–2010
Metadata
Also known as:GS-ENM, UMNH VP Loc. 951, UMNH VP Loc. 1222
Database number:97806
Authorizer:M. Carrano, P. Holroyd Enterer:M. Carrano, P. Holroyd
Modifier:M. Carrano Research group:vertebrate
Created:2010-08-30 12:06:43 Last modified:2023-05-16 15:51:18
Access level:the public Released:2010-08-30 12:06:43
Creative Commons license:CC BY
Reference information

Primary reference:

33796.ETE M. A. Getty, M. A. Loewen, E. M. Roberts, A. L. Titus, and S. D. Sampson. 2010. Taphonomy of horned dinosaurs (Ornithischia: Ceratopsidae) from the late Campanian Kaiparowits Formation, Grand Staircase-Escalante National Monument, Utah. In M. J. Ryan, B. J. Chinnery-Allgeier, D. A. Eberth (eds.), New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium. Indiana University Press, Bloomington 478-494 [M. Carrano/M. Carrano]

Secondary references:

59534 J. R. Lively. 2015. A new species of baenid turtle from the Kaiparowits Formation (Upper Cretaceous, Campanian) of southern Utah. Journal of Vertebrate Paleontology 35(6):e1009084:1-16 [P. Holroyd/P. Holroyd/P. Mannion]
84664 M. A. Loewen, M. E. Burns, M. A. Getty, J. I. Kirkland, and M. K. Vickaryous. 2013. Review of Late Cretaceous ankylosaurian dinosaurs from the Grand Staircase region, southern Utah. In A. L. Titus & M. A. Loewen (ed.), At the Top of the Grand Staircase: The Late Cretaceous of Southern Utah 445-462 [M. Carrano/M. Carrano/M. Carrano]