D 818 CO. Meiklejohn mud-mound flanking bed: Rangerian, Nevada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Orthida - Orthidiellidae
Orthidiella longwelli Ulrich and Cooper 1938
cf. Orthidiella costellata Cooper 1956
Trilobita
Trilobita indet. Walch 1771
see common names

Geography
Country:United States State/province:Nevada County:Nye
Coordinates: 36.9° North, 116.7° West (view map)
Paleocoordinates:6.0° South, 83.9° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Ordovician Epoch:Early/Lower Ordovician
Stage:Floian 10 m.y. bin:Ordovician 2
Key time interval:Rangerian Trilobite zone: L?
Age range of interval:470.00000 - 469.10000 m.y. ago
Stratigraphy
Geological group:Pogonip Formation:Antelope Valley
Local section: SW side Meiklejohn Peak Local bed:340 above base of bioherm ft
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: Lower Antelope Valley Limestone, 340 ft above the base of the mud-mound, 408 ft above base of the formation, Orthidiella Zone, Early Whiterockian. However: Ross (1974) tentatively puts it in Zone L.
Lithology and environment
Primary lithology:nodular lithified "limestone"
Lithology description: flanking bed of the mud-mound
Environment:perireef or subreef
Taphonomy
Modes of preservation:body,replaced with silica
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USGS
Metadata
Also known as:USGS D 818 CO
Database number:80077
Authorizer:W. Kiessling Enterer:U. Merkel
Modifier:J. Marcot Research group:marine invertebrate
Created:2008-04-02 05:12:30 Last modified:2023-09-05 14:16:10
Access level:the public Released:2008-04-02 05:12:30
Creative Commons license:CC BY
Reference information

Primary reference:
25409. R. J. Ross, Jr. 1972. Fossils from the Ordovician bioherm at Meiklejohn Peak, Nevada. United States Geological Survey Professional Paper 685 [S. Finnegan/S. Finnegan/U. Merkel]