Niagara Gorge section 2, Irondequoit Limestone Fm. (Rockway Mbr.- 21.9 m), Niaga (Silurian of the United States)

Where: Niagara County, New York (43.2° N, 79.0° W: paleocoordinates 26.9° S, 44.7° W)

• coordinate based on nearby landmark

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

• 21.9 m above base.

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 742: authorized by John Alroy, entered by Mike Sommers on 02.03.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• conodonts only
Show authors, comments, and common names
Conodonta
 Panderodontida - Panderodontidae
Panderodus unicostatus
Panderodus unicostatus Branson and Mehl 1933 conodont
 Prioniodontida - Distomodontidae
Distomodus staurognathoides
Distomodus staurognathoides Walliser 1964 conodont
 Prioniodontida - Balognathidae
Pterospathodus amorphognathoides
Pterospathodus amorphognathoides Walliser 1964 conodont
 Ozarkodinida -
Ozarkodina sp., Ozarkodina hadra
Ozarkodina sp. Branson and Mehl 1933 conodont
maybe more than one species (spp.)
Ozarkodina hadra Nicoll and Rexroad 1968 conodont
 Ozarkodinida - Pterospathodontidae
Carniodus carnulus
Carniodus carnulus Walliser 1964 conodont
 Ozarkodinida - Spathognathodontodae
"Ozarkodina polinclinata" = Wurmiella polinclinata
"Ozarkodina polinclinata" = Wurmiella polinclinata Nicoll and Rexroad 1968 conodont