UCM 83271: Early/Lower Campanian, Utah
collected by J. G. Eaton

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876
1 specimen
tooth
see common names

Geography
Country:United States State/province:Utah County:Garfield
Coordinates: 38.1° North, 111.0° West (view map)
Paleocoordinates:45.9° North, 81.9° 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:Early/Lower Campanian
Age range of interval:83.50000 - 70.60000 m.y. ago
Stratigraphy
Formation:Masuk Member:Middle
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: mudstone
Secondary lithology: carbonaceous "shale"
Lithology description: "It shows a marked decrease in sandstone compared to the lower member and is dominated by drab mudstones and carbonaceous shales"
Environment:fluvial indet.
Geology comments: "the middle member of the Masuk Formation [was] deposited in a meander-belt system with point bar, levee, crevasse splay, and overbank deposits"
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:mesofossils
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:field collection
Reason for describing collection:general faunal/floral analysis
Collectors:J. G. Eaton
Metadata
Database number:167494
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2015-03-19 15:53:21 Last modified:2015-03-20 14:16:31
Access level:the public Released:2015-03-19 15:53:21
Creative Commons license:CC BY
Reference information

Primary reference:

25625.ETE J. G. Eaton. 1990. Stratigraphic revision of Campanian (Upper Cretaceous) rocks in the Henry Basin, Utah. The Mountain Geologist 27(1):27-38 [M. Carrano/M. Carrano]