Niagara Gorge section 1, Irondequoit Limestone Fm. (Rockway Mbr.; 21.9 - 22.6 m): Wenlock, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Conodonta - Prioniodontida - Balognathidae
Pterospathodus amorphognathoides Walliser 1964
Conodonta - Ozarkodinida - Spathognathodontodae
Ozarkodina polinclinata (Nicoll and Rexroad 1968)
Conodonta - Ozarkodinida - Pterospathodontidae
Carniodus carnulus Walliser 1964
see common names

Geography
Country:Canada State/province:Ontario
Coordinates: 43.1° North, 79.0° West (view map)
Paleocoordinates:27.0° South, 44.8° West
Time
Period: Silurian Epoch: Wenlock
10 m.y. bin: Silurian 2
Key time interval: Wenlock Zone:  Pterospathodus amorphognathoides
Age range of interval: 433.4 - 427.4 m.y. ago
Stratigraphy
Formation:Irondequoit Limestone Member:Rockway
Stratigraphy comments: interval 21.9-22.6 m
Lithology and environment
Primary lithology: dolomite
Environment:marine indet.
Geology comments: "argillaceous dolomite." no environment info given.
Taphonomy
Modes of preservation:body
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Taxonomic list comments:conodonts only
Metadata
Database number:743
Authorizer:J. Alroy Enterer:M. Sommers
Research group:marine invertebrate
Created:1999-03-02 18:19:50 Last modified:1999-03-09 13:24:01
Access level:the public Released:2000-11-20 13:53:10
Creative Commons license:CC BY
Reference information

Primary reference:
28. M. A. Kleffner. 1991. Conodont biostratigraphy of the upper part of the Clinton Group and the Lockport Group (Silurian) in the Niagara Gorge region, New York and Ontario. Journal of Paleontology 65(3):500-511 [J. Alroy/M. Sommers/J. Alroy]