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

Where: Ontario, Canada (43.1° N, 79.0° W: paleocoordinates 27.0° S, 44.8° W)

When: Pterospathodus amorphognathoides zone, Rockway Member (Irondequoit Limestone Formation), Wenlock (433.4 - 427.4 Ma)

• interval 21.9-22.6 m

Environment/lithology: marine; dolomite

• "argillaceous dolomite." no environment info given.

Primary reference: 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]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 743: authorized by John Alroy, entered by Mike Sommers on 02.03.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• conodonts only
Conodonta
 Ozarkodinida - Spathognathodontodae
"Ozarkodina polinclinata" = Wurmiella polinclinata
"Ozarkodina polinclinata" = Wurmiella polinclinata Nicoll and Rexroad 1968 conodont
 Ozarkodinida - Pterospathodontidae
Carniodus carnulus Walliser 1964 conodont
 Prioniodontida - Balognathidae
Pterospathodus amorphognathoides Walliser 1964 conodont