Isle La Motte, Lake Champlain, bryozoan mounds (Ordovician of the United States)

Also known as Reef 1813

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

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Fleury Member (Day Point Formation), Chazyan (470.0 - 457.3 Ma)

• upper Fleury Member

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone

• bryozoan mounds

Size class: macrofossils

Primary reference: M. Pitcher. 1964. Evolution of Chazyan (Ordovician) reefs of eastern United States and Canada. Bulletin of Canadian Petroleum Geology 12(3):632-691 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 80820: authorized by Wolfgang Kiessling, entered by Uta Merkel on 13.05.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Stenolaemata
 Trepostomata - Trematoporidae
Batostoma chazyensis
 Cystoporata - Ceramoporidae
Cheiloporella sp.
Cheiloporella sp. Ulrich 1882
  - Phylloporinidae
Phylloporina sp.
Phylloporina sp. Foerste 1887
Anthozoa
 Lichenariida - Lichenariidae
Lichenaria sp.
Lichenaria sp. Winchell and Schuchert 1895 tabulate coral
Demospongiae
 Lithistida - Anthaspidellidae
Zittelella sp.
Zittelella sp. Ulrich and Everett 1889 demosponge