Where: Quebec, Canada (48.5° N, 64.2° W: paleocoordinates 24.0° S, 39.2° W)
• coordinate based on political unit
• local area-level geographic resolution
When: unit 4 Member (White Head Formation), Ashgill (449.5 - 443.7 Ma)
• White Head Formation is divided into 9 nuumbered units. This is from unit 4, with unit 1 at the base.`
• group of beds-level stratigraphic resolution
Environment/lithology: deep subtidal shelf; lithified limestone and lithified, 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 12058: authorized by Mark Patzkowsky, entered by Zack Krug on 05.10.2001
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Strophomenata | |
? Bicuspina sp. Havlicek 1950 | |
? Sowerbyella gigantea C Jones 1928 |