Above Spencer Canyon, Muav Limestone, Western Grand Canyon: Merioneth, Arizona

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Hyolithida - Hyolithidae
Hyolithes sp. d'Eichwald 1840
Lingulata - Lingulida - Obolidae
Lingulella sp. Salter 1866
Paterinata - Paterinida - Paterinidae
Paterina sp. Beecher 1891
Trilobita - Corynexochida - Dolichometopidae
Glossopleura sp. Poulsen 1927
Anoria sp. Walcott 1924
Clavaspidella sp. Poulson 1927
Trilobita - Ptychopariida - Alokistocaridae
Elrathia sp. Walcott 1924
Alokistocare sp. Lorenz 1906
see common names

Geography
Country:United States State/province:Arizona
Coordinates: 35.8° North, 113.6° West (view map)
Paleocoordinates:5.1° South, 91.6° West
Basis of coordinate:based on nearby landmark
Time
Period: Cambrian Epoch: Furongian
10 m.y. bin: Cambrian 5
*Period:Late/Upper Cambrian
Key time interval: Merioneth Zone:  Bathyuriscus - Elrathina
Age range of interval: 497 - 485.4 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Muav Limestone
Stratigraphy comments: "Bright Angel Shale tongue" [earlier the Bright Angel was listed as a Fm. with no 'Shale' in the title!]
Lithology and environment
Primary lithology:green "limestone"
Secondary lithology: "shale"
Environment:marine indet.
Geology comments: "green sh and ls. outer BA2?"
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Taxonomic list comments:"McKee and Resser, 1945, p.31"
Metadata
Database number:210
Authorizer:J. Sepkoski Enterer:M. Sommers
Modifier:J. Ju Research group:marine invertebrate
Created:1998-11-20 10:07:18 Last modified:2017-01-06 16:51:04
Access level:the public Released:1998-11-20 10:07:18
Creative Commons license:CC BY
Reference information

Primary reference:
60996. E. D. McKee and C. E. Resser. 1945. Cambrian history of the Grand Canyon region. Carnegie Institution of Washington Publication 563:1-232 [M. Uhen/J. Ju/M. Uhen]