Where: Quebec, Canada (48.8° N, 64.5° W: paleocoordinates 23.6° S, 39.3° W)

• coordinate based on political unit

• local area-level geographic resolution

When: White Head Formation, Ashgill (449.5 - 443.7 Ma)

• White Head Fm is divided into 9 numbered units. This collection is from unit 1, the base of the formation.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, silty, sandy limestone and lithified, silty, calcareous shale

Size class: macrofossils

Primary reference: P. M. Sheehan and P.J. Lesperance. 1981. Brachiopods from the White Head Formation (Late Ordovician-Early Silurian) of the Perce region, Quebec, Canada. IUGS Subcommission on Silurian Stratigraphy, Ordovician-Silurian Boundary Working Group, Field meeting, Anticosti-Gaspe, Quebec, 1981 2:1-321 [M. Patzkowsky/Z. Krug/Z. Krug]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 11690: authorized by Mark Patzkowsky, entered by Zack Krug on 30.08.2001

Creative Commons license: CC BY (attribution)