USGS 7708, Sabinal Creek: Early/Lower Campanian, Texas
collected by L.W. Stephenson

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Cidaroida - Cidaridae
Cidaris texanus Clark 1891
Echinoidea - Spatangoida - Hemiasteridae
Hemiaster texanus Roemer 1849
see common names

Geography
Country:United States State/province:Texas County:Uvalde
Coordinates: 29.4° North, 99.5° West (view map)
Paleocoordinates:35.0° North, 72.8° 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:83.60000 - 72.10000 m.y. ago
Stratigraphy
Formation:Anacacho Limestone
Stratigraphic resolution:bed
Stratigraphy comments: Outcrop on Sabinal river exposes lower part of Anacacho Limestone, of late Early Campanian age: Baculites hippocrepis III zone to Baculites sp. (smooth) zone.
Lithology and environment
Primary lithology: lithified "limestone"
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:L.W. Stephenson
Metadata
Database number:78202
Authorizer:W. Kiessling, M. Clapham Enterer:U. Merkel, M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2008-01-31 02:16:15 Last modified:2018-11-22 17:14:04
Access level:the public Released:2008-01-31 02:16:15
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]