E12, Chazy (Ordovician of the United States)

Also known as B4 of Brainerd & Seely

Where: Clinton County, New York (44.9° N, 73.4° W: paleocoordinates 27.9° S, 54.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Valcour Formation, Chazyan (470.0 - 457.3 Ma)

• see Flower (1961, p. 13)

• bed-level stratigraphic resolution

Environment/lithology: fine-grained, ooidal limestone

• Massive, pure limestone, fine-greained, often oolitic. In the upper part f the section there are lenses of pure limestone with churnis the fossils.

Size class: macrofossils

Primary reference: P. E. Raymond. 1906. The Chazy Formation and its fauna. Annals of the Carnegie Museum 3(4):498-596 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 56213: authorized by Pete Wagner, entered by Pete Wagner on 15.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Euomphalina - Macluritidae
Maclurites magnus Le Sueur 1818 snail
 Murchisoniina - Subulitidae
Cyrtospira raymondi Hudson 1905 snail
 Murchisoniina - Trochonematidae
"Trochonema rectangulare" = Trochonemella knoxvillensis
"Trochonema rectangulare" = Trochonemella knoxvillensis Ulrich and Scofield 1897 snail
[entered as Trochonema rectangularis]