Dinosaur National Monument tracksite 9: Norian - Rhaetian, Utah
collected by M. Lockley, K. Conrad, M. Paquette 1991–1992

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Gwyneddichniidae
Gwyneddichnium sp. Bock 1952
1 specimen
DINO 15001
Reptilia - Chirotheriidae
? Brachychirotherium sp. Beurlen 1950
1 specimen
DINO 15002
see common names

Geography
Country:United States State/province:Utah County:Uintah
Coordinates: 40.4° North, 109.3° West (view map)
Paleocoordinates:16.7° North, 47.2° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Triassic Epoch:Late/Upper Triassic
10 m.y. bin:Triassic 4
Key time interval:Norian - Rhaetian
Age range of interval:228.00000 - 201.30000 m.y. ago
Stratigraphy
Formation:Popo Agie
Stratigraphic resolution:bed
Stratigraphy comments: also assigned to Chinle Fm.; middle of "red siltstone unit"
Lithology and environment
Primary lithology:red siltstone
Includes fossils?Y
Environment:terrestrial indet.
Taphonomy
Modes of preservation:mold/impression,trace
Size of fossils:macrofossils
Spatial orientation:life position
Temporal resolution:snapshot
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:surface (in situ),peel or thin section,field collection,observed (not collected)
Reason for describing collection:general faunal/floral analysis
Collectors:M. Lockley, K. Conrad, M. Paquette Collection dates:1991–1992
Metadata
Also known as:UCD91-9, UCD Loc. 9, UCD 91-9
Database number:193020
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2018-05-03 16:31:55 Last modified:2018-05-08 11:27:52
Access level:the public Released:2018-05-03 16:31:55
Creative Commons license:CC BY
Reference information

Primary reference:

65643. M. G. Lockley, K. L. Conrad, M. Paquette and A. H. Hamblin. 1992. Late Triassic vertebrate tracks in the Dinosaur National Monument area. Field Guide to Geologic Excursions in Utah and Adjacent Areas of Nevada, Idaho, and Wyoming. Utah Geological Survey Miscellaneous Publication 92-3:383-390 [M. Carrano/M. Carrano]

Secondary references:

65639 M. G. Lockley. 2006. Observations on the ichnogenus Gwyneddichium and Gwyneddichium-like footprints and trackways from the Upper Triassic of the western United States. In J. D. Harris, S. G. Lucas, J. A. Spielmann, M. G. Lockley, A. R. C. Milner, J. I. Kirkland (eds.), The Triassic-Jurassic Terrestrial Transition. New Mexico Museum of Natural History and Science Bulletin 37:170-175 [M. Carrano/M. Carrano/P. Wagner]