Middleville. Dark Compact Limestone Layer (Ordovician of the United States)

Where: Herkimer County, New York (43.1° N, 75.0° W: paleocoordinates 26.6° S, 50.1° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Belodina confluens conodont zone, Glendale Member (Denley Formation), Katian (453.0 - 445.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, black limestone

Size class: macrofossils

Reposited in the AMNH

Primary reference: J. Hall. 1847. Containing descriptions of the organic remains of the lower division of the New York system (equivalent of the Lower Silurian rocks of Europe). Paleontology of New York 1:1-338 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 182627: authorized by Pete Wagner, entered by Pete Wagner on 14.11.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Bellerophontida - Sinuitidae
"Bellerophon bilobatus" = Sinuites cancellatus
"Bellerophon bilobatus" = Sinuites cancellatus Hall 1847 snail
 Bellerophontida - Pterothecidae
Carinaropsis carinata n. gen. n. sp.
Carinaropsis carinata n. gen. n. sp. Hall 1847 snail