Eagle Mountain (USGS 4165-CO): Delamaran, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Ptychopariida - Ptychopariidae
Plagiura minor Palmer and Halley 1979
Trilobita - Ptychopariida
Mexicella mexicana Lochman 1948
Trilobita - Corynexochida - Zacanthoididae
Albertella longwelli Palmer and Halley 1979
see common names

Geography
Country:United States State/province:California
Coordinates: 36.2° North, 116.3° West (view map)
Paleocoordinates:1.7° South, 95.1° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cambrian
10 m.y. bin: Cambrian 3
Key time interval: Delamaran Trilobite zone:  Albertella
Age range of interval: 511 - 506.5 m.y. ago
Stratigraphy
Formation:Carrara Member:Jangle Limestone
Stratigraphic resolution:member
Stratigraphy comments: The lower part of the Jangle Limestone Member in the southeastern part of the outcrop area of the Carrara Formation has yielded several small low-diversity collections of trilobites that are typical of the Albertella-Mexicella Zonule of the Albertella Zone.
Lithology and environment
Primary lithology: lime mudstone
Secondary lithology:shelly/skeletal wackestone
Lithology description: The lithologies of the Jangle Limestone Member include lime mudstones, trilobite- and echinodermfragment wackestones, packstones, and grainstones, oolite, fenestral-fabric and laminated limestones.
Environment:shallow subtidal indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils,microfossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:149653
Authorizer:W. Kiessling Enterer:M. Krause
Modifier:J. Marcot Research group:micropaleontology
Created:2013-08-19 21:43:55 Last modified:2022-08-02 16:20:14
Access level:authorizer only Released:2013-11-19 21:43:55
Creative Commons license:CC BY
Reference information

Primary reference:
47804. A. R. Palmer and R. B. Halley. 1979. Physical Stratigraphy and Trilobite Biostratigraphy of the Carrara Formation (Lower and Middle Cambrian) in the Southern Great Basin. United States Geological Survey Professional Paper 1047:1-131 [W. Kiessling/M. Krause/J. Ju]