Niagara Gorge section 2, Irondequoit Limestone Fm. (Rockway Mbr.- 24.8 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: Kockelella ranuliformis zone, Rockway Member (Irondequoit Limestone Formation), Wenlock (433.4 - 427.4 Ma)

• 24.8 m above base.

Environment/lithology: marine; dolomite

• argillaceous dolomite according to strat column. 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 768: authorized by John Alroy, entered by Mike Sommers on 04.03.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• conodonts only.
Show authors, comments, and common names
Conodonta
 Prioniodontida - Distomodontidae
"Distomodus staurognathoides" = Distomodus staurognathoides, "Johnognathus huddlei" = Distomodus staurognathoides
"Distomodus staurognathoides" = Distomodus staurognathoides Walliser 1964 conodont
"Johnognathus huddlei" = Distomodus staurognathoides Walliser 1964 conodont
s.f.
 Prioniodontida -
Pseudooneotodus bicornis
Pseudooneotodus bicornis Drygant 1974 conodont
 Prioniodontida - Balognathidae
Pterospathodus amorphognathoides
Pterospathodus amorphognathoides Walliser 1964 conodont
 Ozarkodinida - Kockelellidae
Kockelella ranuliformis
Kockelella ranuliformis Walliser 1964 conodont
 Ozarkodinida - Spathognathodontodae
"Ozarkodina excavata" = Wurmiella excavata, "Ozarkodina polinclinata" = Wurmiella polinclinata
"Ozarkodina excavata" = Wurmiella excavata Branson and Mehl 1933 conodont
"Ozarkodina polinclinata" = Wurmiella polinclinata Nicoll and Rexroad 1968 conodont
 Ozarkodinida - Pterospathodontidae
Carniodus carnulus
Carniodus carnulus Walliser 1964 conodont
 Panderodontida - Panderodontidae
Panderodus unicostatus
Panderodus unicostatus Branson and Mehl 1933 conodont