UCMP V4214, Moa Ave: Sinemurian - Pliensbachian, Arizona
collected by J. Williams, S. Welles 1940, 1942

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Megalosaurus wetherilli n. sp. Welles 1954
3 individuals
recombined as Dilophosaurus wetherilli
UCMP 37302 (holotype), nearly complete skeleton. UCMP 37303, partial skeleton; third skeleton eroded and not collected
see common names

Geography
Country:United States State/province:Arizona County:Coconino
Coordinates: 36.1° North, 110.3° West (view map)
Paleocoordinates:19.7° North, 49.1° West
Basis of coordinate:stated in text
Altitude:1481 meters
Geographic resolution:small collection
Time
Period:Jurassic Epoch:Early/Lower Jurassic
*Period:Early/Lower Jurassic
*International age/stage:Hettangian - Pliensbachian
Key time interval:Sinemurian - Pliensbachian
Age range of interval:199.30000 - 182.70000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Glen Canyon Formation:Kayenta Member:Silty Facies
Stratigraphic resolution:bed
Stratigraphy comments: bed is 120 (or 126) feet above base of Kayenta Formation.
Lithology and environment
Primary lithology:blue "shale"
Secondary lithology:brown,gray siltstone
Includes fossils?Y
Lithology description: "purplish blocky shale" within Kayenta. Formation overall is the "silty facies" portion, gray and brownish, fine-grained sediments.
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Spatial orientation:life position
Preservation of anatomical detail:good
Articulated whole bodies:all
Size sorting:very poor
Fragmentation:occasional
Temporal resolution:snapshot
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:selective quarrying,surface (float),surface (in situ),mechanical,field collection
Collection size:3 individuals
Reason for describing collection:taxonomic analysis
Museum repositories:UCMP
Collectors:J. Williams, S. Welles Collection dates:1940, 1942
Metadata
Also known as:Tuba City, Silty Facies, Moenave
Database number:13409
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2002-03-19 13:11:07 Last modified:2022-04-29 13:22:46
Access level:the public Released:2002-03-19 13:11:07
Creative Commons license:CC BY
Reference information

Primary reference:

13844.ETE S. P. Welles. 1954. New Jurassic dinosaur from the Kayenta Formation of Arizona. Bulletin of the Geological Society of America 65:591-598 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

12373 J. M. Clark and D. E. Fastovsky. 1986. Vertebrate biostratigraphy of the Glen Canyon Group in northern Arizona. The Beginning of the Age of the Dinosaurs: Faunal change across the Triassic-Jurassic boundary, N. C. Fraser and H.-D. Sues (eds.), Cambridge University Press 285-301 [R. Whatley/R. Whatley/R. Whatley]
80483 J. W. Harshbarger, C. A. Repenning, and J. H. Irwin. 1957. Stratigraphy of the uppermost Triassic and the Jurassic rocks of the Navajo country. United States Geological Survey Professional Paper 291:1-74 [T. Hegna/M. Pankowski/M. Carrano]
73901 A. D. Marsh and T. B. Rowe. 2020. A comprehensive anatomical and phylogenetic evaluation of Dilophosaurus wetherilli (Dinosauria, Theropoda) with descriptions of new specimens from the Kayenta Formation of northern Arizona. Journal of Paleontology 94(Memoir 78):1-103 [M. Carrano/M. Carrano]
70308 P. J. Senter and C. Sullivan. 2019. Forelimbs of the theropod dinosaur Dilophosaurus wetherilli: range of motion, influence of paleopathology and soft tissues, and description of a distal carpal bone. Palaeontologia Electronica 22(2):30A:1-10 [M. Carrano/M. Carrano]
76532 A. L. Titus, K. Knoll, J. J. W. Sertich, D. Yamamura, C. A. Suarez, I. J. Glasspool, J. E. Ginouves, A. K. Lukacic, and E. M. Roberts. 2021. Geology and taphonomy of a unique tyrannosaurid bonebed from the upper Campanian Kaiparowits Formation of southern Utah: implications for tyrannosaurid gregariousness. PeerJ 9:e11013:1-50 [P. Mannion/P. Mannion/M. Carrano]
62962 S. P. Welles. 1972. Dinosaurs come to the Academy. Pacific Discovery 25(5):3-11 [M. Carrano/M. Carrano]
5718ETE,5% 26900S. P. Welles. 1984. Dilophosaurus wetherilli (Dinosauria, Theropoda): osteology and comparisons. Palaeontographica Abteilung A 185:85-180 [M. Carrano/A. Behrensmeyer/J. Alroy]