Rock Head 2 (UCMP V82303): Sinemurian - Pliensbachian, Arizona
collected 1982

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
cf. Dilophosaurus sp. Welles 1970
1 specimen
UCMP 130053
see common names

Geography
Country:United States State/province:Arizona County:Coconino
Coordinates: 35.7° North, 111.2° West (view map)
Paleocoordinates:19.3° North, 49.9° West
Basis of coordinate:unpublished field data
Geographic resolution:small collection
Time
Period:Jurassic Epoch:Early/Lower Jurassic
Key time interval:Sinemurian - Pliensbachian
Age range of interval:199.50000 - 184.20000 m.y. ago
Stratigraphy
Geological group:Glen Canyon Formation:Kayenta Member:Silty Facies
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: sandstone
Includes fossils?Y
Lithology description: channel sandstone
Environment:"channel"
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Disassociated major elements:some
Fragmentation:frequent
Collection methods and comments
Collection methods:field collection
Reason for describing collection:general faunal/floral analysis
Museum repositories:UCMP
Collection dates:1982
Metadata
Database number:51896
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2005-06-30 08:01:38 Last modified:2020-12-22 12:55:19
Access level:the public Released:2005-06-30 08:01:38
Creative Commons license:CC BY
Reference information

Primary reference:

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]