Central Whiskey Canyon, Garcia Formation, Collection 72: Desmoinesian, New Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Athyridida - Athyrididae
Composita argentea (Shepard 1838)
Composita ovata Mather 1915
Rhynchonellata - Spiriferida - Spiriferidae
Spirifer occidentalis Girty 1927
replaced by Anthracospirifer occiduus
Strophomenata - Orthotetida - Derbyiidae
Derbya sp. (Waagen 1884)
original and current combination Derbyia
see common names

Geography
Country:United States State/province:New Mexico County:Sierra
Coordinates: 33.2° North, 107.3° West (view map)
Paleocoordinates:3.0° South, 40.6° West
Geographic resolution:small collection
Time
Period:Carboniferous Epoch:Pennsylvanian
10 m.y. bin:Carboniferous 4-5
*Period:Middle Carboniferous - Late/Upper Carboniferous *Epoch:Des Moines
Key time interval:Desmoinesian
Age range of interval:312.70000 - 305.90000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Armendaris Formation:Garcia
Local section:Whiskey Canyon Local bed:Unit 72
Stratigraphic resolution:group of beds
Stratigraphy comments: Des Moines Series is divided into the Bolander Group and Armendaris Group; the latter contains 3 formations. Unit 72 = 4.5 ft.
Lithology and environment
Primary lithology:gray lithified cherty/siliceous "limestone"
Secondary lithology: "shale"
Lithology description: Unit 72: Limestone, light-gray, hard, dense, fine-grained; 2 massive beds separated by a 6-inch nodular limestone interbedded with shale; upper 1.5 feet very cherty, stained lavender, and with white calcite veins; poorly exposed.
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Taxonomic list comments:Only brachiopods reported.
Metadata
Database number:10159
Authorizer:T. Olszewski Enterer:K. Nell
Research group:marine invertebrate
Created:2001-02-20 12:02:00 Last modified:2003-07-18 18:05:03
Access level:the public Released:2001-02-20 12:02:00
Creative Commons license:CC BY
Reference information

Primary reference:
844. J. L. Gehrig. 1958. Middle Pennsylvanian Brachiopods From the Mud Springs Mountains and Derry Hills, New Mexico. State Bureau of Mines and Mineral Resources, Memoir 3 1-24 [T. Olszewski/K. Nell]