M. S. M. 57.1. Base of hill on north side of Moreau River, east side of US 63: Jeffersonian, Missouri

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Tergomya - Tryblidiida - Tryblidiidae
Gastropoda - Euomphalina - Raphistomatidae
Gastropoda - Murchisoniina - Hormotomidae
Trilobita - Proetida - Hystricuridae
Trilobita - Proetida - Bathyuridae
see common names

Geography
Country:United States State/province:Missouri County:Cole
Coordinates: 38.6° North, 92.2° West (view map)
Paleocoordinates:9.6° North, 108.5° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Ordovician Epoch: Early Ordovician
10 m.y. bin: Ordovician 1-2
Key time interval: Jeffersonian
Age range of interval: 486.85 - 471.3 m.y. ago
Stratigraphy
Formation:Rich Fountain Member:Upper
Stratigraphic resolution:formation
Stratigraphy comments: Arengian half
Lithology and environment
Primary lithology:fine,white lithified argillaceous,cherty/siliceous dolomite
Lithology description: Massive to thin-bedded, white to buff to gray, fine grained argillaceous to coarsely crystalline dolomite.
Environment:carbonate indet.
Taphonomy
Modes of preservation:body,replaced with silica
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:56503
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2005-11-20 15:34:32 Last modified:2025-02-22 15:12:02
Access level:the public Released:2005-11-20 15:34:32
Creative Commons license:CC0
Reference information

Primary reference:
15134. J. S. Cullison. 1944. The stratigraphy of some Lower Ordovician formations of the Ozark uplift. University of Missouri School of Mines and Metallurgy Technical Series Bulletin 15(2):1-112 [P. Wagner/P. Wagner]