Hintze faunule J-9 from Ibex: Blackhillsian, Utah

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Asaphida - Asaphidae
Lachnostoma latucelsum Ross 1951
a rank
Trilobita - Proetida - Dimeropygidae
Dimeropygiella caudanodosa Ross 1951
c rank
Trilobita - Proetida - Bathyuridae
Benthamaspis diminutiva Hintze 1953
r rank
Goniotelus brighti Hintze 1953
c rank
recombined as Acidiphorus brighti
Trilobita - Phacopida - Pliomeridae
Cybelopsis cf. speciosa
r rank
    = Cybelopsis speciosa
Dean 1989
Pseudomera cf. insolita (Poulsen 1927)
Hintze 1951 c rank
see common names

Geography
Country:United States State/province:Utah
Coordinates: 38.9° North, 113.5° West (view map)
Paleocoordinates:7.4° South, 83.0° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Ordovician Epoch:Early/Lower Ordovician
Stage:Floian 10 m.y. bin:Ordovician 2
Key time interval:Blackhillsian
Age range of interval:473.90000 - 470.00000 m.y. ago
Stratigraphy
Geological group:Pogonip Formation:Wah Wah
Local section:Section J of Hintze Local bed:51 ft
Local order:bottom to top
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: lithified cherty/siliceous grainstone
Includes fossils?Y
Lithology description: Calcisiltite,siliceous, ledge forming capped by 6" coarse calcarenite beid which forms ledge in creek bottom.
Environment:deep subtidal ramp
Geology comments: Multiple sources indicate that this was a carbonate dominated ramp, with substantial siliciclastic input, below normal wave base, above storm wave base.
Taphonomy
Modes of preservation:original silica,replaced with silica
Collection methods and comments
Collection excludes:some macrofossils,some microfossils
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Taxonomic list comments:The faunal lists in Hintze 1952 are updated versions of those in Hintze 1951 and, so, are used here.
Metadata
Database number:63848
Authorizer:A. Miller, M. Hopkins Enterer:A. Miller, M. Hopkins
Modifier:A. Miller Research group:marine invertebrate
Created:2006-08-22 12:57:37 Last modified:2006-08-25 11:41:43
Access level:the public Released:2006-08-22 12:57:37
Creative Commons license:CC BY
Reference information

Primary reference:

18329. L. F. Hintze. 1953. Lower Ordovician trilobites from western Utah and eastern Nevadea. Utah Geological and Mineralogical Survey Bulletin 48:249 p. [A. Miller/A. Miller/P. Novack-Gottshall]

Secondary references:

4045 W. T. Dean. 1989. Trilobites from the Survey Peak, Outram and Skoki Formations (Upper Cambrian-Lower Ordovician) at Wilcox Pass, Jasper National Park, Alberta). Geological Survey of Canada Bulletin (389)1-141 [M. Patzkowsky/P. Borkow/P. Borkow]
18349 L.F. Hintze. 1951. Lower Ordovician detailed stratigraphic sections for western Utah. Utah Geological and Mineralogical Survey Bulletin 39:99 p. [A. Miller/A. Miller]