Isle La Motte, Lake Champlain, Crown Point Formation (Ordovician of the United States)

Where: Vermont (44.9° N, 73.3° W: paleocoordinates 28.0° S, 54.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Crown Point Formation (Chazy Group), Chazyan (470.0 - 457.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lime mudstone

Size classes: macrofossils, mesofossils

Primary reference: P. E. Raymond. 1911. The Brachiopoda and Ostracoda of the Chazyan. Annals of the Carnegie Museum 7:215-259 [P. Wagner/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 172203: authorized by Björn Kröger, entered by Björn Kröger on 30.07.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Rhynchonellida - Sphenotretidae
"Zygospira acutirostris" = Sphenotreta acutirostris
"Zygospira acutirostris" = Sphenotreta acutirostris Hall 1847