Bed T, Stone City Bluff (type locality Stone City beds): Lutetian - Bartonian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Nuculanida - Nuculanidae
Orthoyoldia psammotaea (Dall 1898)
rare
see common names

Geography
Country:United States State/province:Texas County:Brazos
Coordinates: 30.6° North, 96.5° West (view map)
Paleocoordinates:32.4° North, 86.5° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Eocene
Key time interval:Lutetian - Bartonian
Age range of interval:47.80000 - 37.71000 m.y. ago
Stratigraphy
Formation:Stone City
Local order:bottom to top
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:glauconitic,gypsiferous,shelly/skeletal,brown,gray poorly lithified "shale"
Secondary lithology:very fine,glauconitic,gray poorly lithified sandstone
Includes fossils?Y
Lithology description: soft and plastic when wet or brittle when dry light olive-gray, weathering to moderate-brown, laminated, sparsely fossiliferous gypsiferous, glauconitic shale containing scattered pockets of friable or crumbly, olive-gray or olive-black, very fine-grained glauconite arenite
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils,difficult macrofossils
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:41438
Authorizer:A. Miller Enterer:K. Layou
Modifier:J. Sessa Research group:GCP,marine invertebrate
Created:2004-07-14 10:39:44 Last modified:2010-10-03 20:07:38
Access level:the public Released:2004-07-14 10:39:44
Creative Commons license:CC BY
Reference information

Primary reference:
7415. H. B. Stenzel, E. K. Krause, and J. T. Twining. 1957. Pelecypoda from the type locality of the Stone City beds (Middle Eocene) of Texas. University of Texas Publication (5704) [M. Kosnik/M. Kosnik/M. Kosnik]