Anticosti Island, Junction Cliff, Ellis Bay Formation Member 2 (Ordovician to of Canada)

Where: Québec, Canada (49.8° N, 64.3° W: paleocoordinates 20.9° S, 36.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: 2 Member (Ellis Bay Formation), Richmondian to Richmondian (449.6 - 433.4 Ma)

• member-level stratigraphic resolution

Environment/lithology: gray lime mudstone and gray, calcareous shale

• Environmental call by T. Hanson.
• "22 m of thin- to medium-beded limestone with minor interbedded shale. Principal lithologies include grey to gray-brown, lime mudstone which weathers light grey and is locally burrowed; minor, thin, and laterally impersistent crinoidal packstone, and grey calcareous shale with brachiopods and corals common."

Size class: macrofossils

Primary reference: C. R. Barnes, A. A. Petryk, and T. E. Bolton. 1981. Anticosti Island, Québec. In P. J. Lespérance (ed.), Field meeting, Anticosti-Gaspé, Québec, 1981: IUGS Subcommssion on Silurian Stratigraphy, Ordovician-Silurian Boundary Working Group Guidebook 1:1-24 [S. Holland/T. Hanson/S. Bruning]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 24334: authorized by Steven Holland, entered by Tori Hanson on 05.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Strophomenida - Sowerbyellidae
Sowerbyella spp. Jones 1928
Rhynchonellata
 Athyridida - Meristellidae
 Pentamerida - Parastrophinidae
Parastrophinella sp. Schuchert and Cooper 1931
Stromatoporoidea
 Labechiida - Aulaceratidae
Aulacera (Beatricea) sp. Plummer 1843 stromatoporoid sponge