Hill locality 354, Cline Mountain: Early/Lower Campanian, Texas
collected by R.T. Hill

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Cidaroida - Cidaridae
Cidaris texanus n. sp. Clark 1891
see common names

Geography
Country:United States State/province:Texas County:Uvalde
Coordinates: 29.2° North, 100.1° West (view map)
Paleocoordinates:34.9° North, 73.5° West
Basis of coordinate:based on nearby landmark
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:83.60000 - 72.10000 m.y. ago
Stratigraphy
Formation:Austin Chalk
Stratigraphic resolution:bed
Stratigraphy comments: Upper layer of Austin Chalk. W. B. Clark thought it came from the Washita group (Lower Cretaceous). Nothing like it has been found in the Washita, but several specimens that apparently represent this species came from the Austin chalk and the Anacacho limestone. Early Campanian age based on well-dated specimens elsewhere.
Lithology and environment
Primary lithology: chalk
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:good
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collectors:R.T. Hill
Metadata
Database number:78201
Authorizer:W. Kiessling Enterer:U. Merkel
Modifier:M. Clapham Research group:marine invertebrate
Created:2008-01-31 02:11:26 Last modified:2018-10-21 18:50:44
Access level:the public Released:2008-01-31 02:11:26
Creative Commons license:CC BY
Reference information

Primary reference:
26335.1% 20600C. W. Cooke. 1953. American Upper Cretaceous Echinoidea. United States Geological Survey Professional Paper 254-A:1-44 [W. Kiessling/U. Merkel/M. Clapham]