00-FNU-29.7: Chatfieldian, Kentucky

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Orthida - Platystrophiidae
Platystrophia sp. King 1850
10 individuals
Rhynchonellata - Orthida - Plectorthidae
Hebertella occidentalis (Hall 1847)
1 individual
Rhynchonellata - Atrypida - Anazygidae
Zygospira modesta (Hall 1847)
2 individuals
Stenolaemata - Trepostomata
Trepostomata indet. Ulrich 1882
2 individuals
bifoliate trepostome
Trepostomata indet. Ulrich 1882
5 individuals
ramose trepostome
Tentaculita - Cornulitida - Cornulitidae
Cornulites sp. Schlotheim 1820
1 individual
Bivalvia - Myalinida - Ambonychiidae
Ambonychia sp. Hall 1847
1 individual
Gastropoda - Euomphalina - Platyceratidae
Cyclonema sp. Hall 1852
6 individuals
Cephalopoda
Nautiloidea indet. Agassiz 1847
1 individual
orthoconic nautiloid
see common names

Geography
Country:United States State/province:Kentucky County:Franklin
Coordinates: 38.2° North, 84.9° West (view map)
Paleocoordinates:27.0° South, 63.2° West
Basis of coordinate:unpublished field data
Geographic resolution:small collection
Time
Period:Ordovician Epoch:Late/Upper Ordovician
10 m.y. bin:Ordovician 4
*Local age/stage:Chatfieldian
Key time interval:Chatfieldian
Age range of interval:460.90000 - 449.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Lexington Limestone Member:Millersburg
Local section:Frankfort North Upper Local bed:29.7 m
Local order:bottom to top
Regional section:Frankfort, KY
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:bioturbation,phosphatic,shelly/skeletal lithified packstone
Secondary lithology:gray lithified silty mudstone
Includes fossils?Y
Environment:open shallow subtidal Tectonic setting:cratonic basin
Taphonomy
Modes of preservation:body,mold/impression,original calcite,replaced with calcite
Temporal resolution:time-averaged
Spatial resolution:parautochthonous
Collection methods and comments
Collection excludes:all microfossils
Collection methods:observed (not collected)
Collection size:29 individuals
Rock censused:2800 cm2 (area)
Reason for describing collection:paleoecologic analysis
Metadata
Database number:48766
Authorizer:S. Holland Enterer:S. Holland
Research group:marine invertebrate
Created:2005-03-30 10:55:41 Last modified:2005-03-30 13:55:41
Access level:the public Released:2005-03-30 10:55:41
Creative Commons license:CC BY
Reference information

Primary reference:

9838. S. M. Holland and M. E. Patzkowsky. 2004. Ecosystem structure and stability: middle Upper Ordovician of central Kentucky, USA. Palaios 19(4):316-331 [S. Holland/S. Holland/S. Bruning]