South end of Valcour Island, Lake Champlain, Chazy Group (Ordovician of the United States)

Where: Clinton County, New York (44.6° N, 73.5° W: paleocoordinates 28.1° S, 54.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Chazy Group, Chazy (466.0 - 457.5 Ma)

Environment/lithology: marine; lithified limestone

Size classes: macrofossils, mesofossils

Primary reference: P. E. Raymond. 1905. The fauna of the Chazy Limestone. The American Journal of Science 20:353-382 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 172183: authorized by Björn Kröger, entered by Björn Kröger on 29.07.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

 Orthida - Orthidae
"Orthis acutiplicata" = Orthambonites acutiplicatus
"Orthis acutiplicata" = Orthambonites acutiplicatus Raymond 1905
 Murchisoniina - Trochonematidae
Trochonema dispar Raymond 1905 snail