Sloan Canyon tracksite (Sloan Canyon Fm.): Norian, New Mexico
collected by M. G. Lockley & A. P. Hunt 1993

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Grallatoridae
Coelurosaurichnus sp. Huene 1941
9 individuals
    = cf. Grallator sp. Hitchcock 1858
Lockley and Hunt 1993
"moderately large theropods"; "cf. Grallator sensu lato"
    = Anchisauripus sillimani Hitchcock 1843
Hunt and Lucas 2007
recombined as Eubrontes sillimani
Reptilia
? Tetrasauropus sp. Ellenberger 1970
Lockley and Hunt 1993 1 individual
    = ? Eosauropus sp. Lockley et al. 2006
Hunt and Lucas 2007
Reptilia - Parasuchidae
Apatopus cf. lineatus (Bock 1952)
"a protorosaurid"
    = Apatopus sp. Baird 1957
Lockley and Conrad 1987
Reptilia - Chirotheriidae
Chirotherium sp. Kaup 1835
"phytosaurs"
Brachychirotherium sp. Beurlen 1950
Lockley and Hunt 1993 16 individuals
Reptilia
Rhynchosauroides sp. Maidwell 1911
unclassified
Scoyenia sp. White 1929
Lockley and Conrad 1987
Kouphichnium sp. Nopcsa 1923
Lockley and Conrad 1987
? Acanthichnus sp. Hitchcock 1858
Lockley and Conrad 1987
Isopodichnus sp. Bornemann 1889
Lockley and Conrad 1987
see common names

Geography
Country:United States State/province:New Mexico County:Union
Coordinates: 36.9° North, 103.2° West (view map)
Paleocoordinates:11.8° North, 42.6° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Triassic Epoch:Late/Upper Triassic
Stage:Norian 10 m.y. bin:Triassic 4
Key time interval:Norian
Age range of interval:227.00000 - 208.50000 m.y. ago
Stratigraphy
Geological group:Chinle Formation:Sloan Canyon
Stratigraphic resolution:group of beds
Stratigraphy comments: Apachean; orig. assigned to Dockum.
Lithology and environment
Primary lithology:current ripples,planar lamination,white sandstone
Secondary lithology:green claystone
Includes fossils?Y
Includes fossils?Y
Lithology description: "near the top of a white, locally ripple-marked sandstone unit about 40 cm thick. This sandstone...is planar bedded with green clay drapes separating various units..."
Environment:terrestrial indet.
Taphonomy
Modes of preservation:mold/impression,trace
Degree of concentration:concentrated
Size of fossils:mesofossils
Spatial orientation:life position
Associated major elements:some
Disassociated major elements:some
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:surface (float),surface (in situ),observed (not collected)
Reason for describing collection:general faunal/floral analysis
Collectors:M. G. Lockley & A. P. Hunt Collection dates:1993
Metadata
Database number:84021
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2008-09-15 14:47:13 Last modified:2021-04-27 13:46:31
Access level:the public Released:2008-09-15 14:47:13
Creative Commons license:CC BY
Reference information

Primary reference:
71350. K. L. Conrad and M. G. Lockley. 1986. Overview of Late Triassic ichnofaunas in the western USA. In M. G. Lockley (ed.), A Guide to Dinosaur Tracksites of the Colorado Plateau and American Southwest. University of Colorado at Denver Geology Department Magazine, Special Issue 12-14 [M. Carrano/M. Carrano]

Secondary references:

31825 A. P. Hunt and S. G. Lucas. 1993. Triassic vertebrate paleontology and biochronology of New Mexico. In S. G. Lucas & J. Zidek (ed.), Vertebrate Paleontology in New Mexico. New Mexico Museum of Natural History and Science Bulletin 2:49-60 [R. Butler/R. Butler/M. Carrano]
27985ETE A. P. Hunt and S. G. Lucas. 2007. Late Triassic tetrapod tracks of western North America. In S. G. Lucas & J. A. Spielmann (eds.), Triassic of the American West. New Mexico Museum of Natural History and Science Bulletin 40:215-230 [M. Carrano/M. Carrano]
76668 H. Klein and S. G. Lucas. 2021. The Triassic Tetrapod Footprint Record. New Mexico Museum of Natural History & Science Bulletin 83:1-194 [M. Carrano/M. Carrano/M. Carrano]
59258 M. G. Lockley and K. Conrad. 1987. Mesozoic tetrapod tracksites and their application in paleoecological census studies. In P. J. Currie & E. H. Koster (ed.), Fourth Symposium on Mesozoic Terrestrial Ecosystems, Short Papers. Occasional Papers of the Tyrrell Museum of Palaeontology 3:148-153 [M. Carrano/M. Carrano]
28149ETE M. G. Lockley and A. P. Hunt. 1993. A new Late Triassic tracksite from the Sloan Canyon Formation, type section, Cimarron Valley, New Mexico. In S. G. Lucas and M. Morales (eds.), The Nonmarine Triassic. New Mexico Museum of Natural History and Science Bulletin 3:279-283 [M. Carrano/M. Carrano]
61886 M. G. Lockley and A. P. Hunt. 1995. Dinosaur Tracks and Other Fossil Footprints of the Western United States xxi-338 [M. Carrano/M. Carrano]
43968 M. G. Lockley, S. G. Lucas, and A. P. Hunt. 2000. Dinosaur tracksites in New Mexico: a review. In S. G. Lucas and A. B. Heckert (eds.), Dinosaurs of New Mexico. New Mexico Museum of Natural History and Science Bulletin 7:9-16 [M. Carrano/M. Carrano]
39735 M. G. Lockley, S. G. Lucas, and A. P. Hunt. 2006. Eosauropus, a new name for a Late Triassic track: further observations on the Late Triassic ichnogenus Tetrasauropus and related forms, with notes on the limits of interpretation. 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 37:192-198 [M. Carrano/M. Carrano/P. Wagner]