Ibex, Hintze's H section, Wahwah sponge mounds: Blackhillsian, Utah

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Demospongiae - Anthaspidellidae
Archaeoscyphia rossi Johns 1994
see common names

Geography
Country:United States State/province:Utah County:Millard
Coordinates: 38.8° North, 113.5° West (view map)
Paleocoordinates:7.4° South, 83.0° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Ordovician Epoch: Early Ordovician
Stage: Floian 10 m.y. bin: Ordovician 2
Key time interval: Blackhillsian Conodont zone:  Reutterodus andinus
Age range of interval: 473.9 - 470 m.y. ago
Stratigraphy
Geological group:Pogonip Formation:Wahwah
Stratigraphic resolution:group of beds
Stratigraphy comments: upper Ibexian or Lower Whiterockian;
Upper part of H section put in Reutterodus andinus zone, which is Blackhillsian.
Lithology and environment
Primary lithology: lithified "limestone"
Lithology description: sponge-microbial mounds
Environment:reef, buildup or bioherm
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Also known as:Reef 1828
Database number:119445
Authorizer:W. Kiessling Enterer:U. Merkel
Modifier:P. Wagner
Created:2011-10-26 18:38:25 Last modified:2012-08-24 14:46:55
Access level:authorizer only Released:2012-10-26 18:38:25
Creative Commons license:CC BY
Reference information

Primary reference:
38316. R. A. Johns. 1994. Ordovician lithistid sponges of the Great Basin. Nevada Bureau of Mines and Geology Open-File Report 94(1):1-156 [W. Kiessling/U. Merkel]

Secondary references:

42733 W. C. Sweet and C. M. Tolbert. 1997. An Ibexian (Lower Ordovician) Reference Section in the Southern Egan Range, Nevada, for a Conodont-Based Chronostratigraphy. United States Geological Survey Professional Paper 1579–B:53-81 [P. Wagner/P. Wagner]