White Head Fm, Perce, Ashgill, CAP- Patzkowsky (Ordovician of Canada)

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)

• The White Head Formation is divided into 9 numbered units. This collection is from unit 2, one above the base of the formation.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, argillaceous sandstone and lithified, sandy shale

• Grey, greenish-weathering very argillaceous medium sandstone to finely sandy shale, with occasional thin beds of brownish micrite, calcarenite, and fine calcareous sandstone.

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 11703: authorized by Mark Patzkowsky, entered by Zack Krug on 31.08.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Brachiopods only.
unclassified
  -
Strophomenata
 Strophomenida - Aegiromenidae
Chonetoidea radiatula Barrande 1879
Barrande
 Strophomenida - Sowerbyellidae
Eoplectodonta sp. Kozlowski 1929
 Strophomenida - Glyptomenidae
? Glyptomena sp. Cooper 1956
 Strophomenida - Strophomenidae
Gunnarella sp. Spjeldnaes 1957
 Strophomenida - Rafinesquinidae
Leptaena spp. Dalman 1828
 Orthotetida - Chilidiopsidae
"Fardenia castatula" = Fardenia costatula
"Fardenia castatula" = Fardenia costatula Cooper and Kindle 1936
Rhynchonellata
 Rhynchonellida - Rhynchotrematidae
Rhynchotrema sp. Hall 1860
 Pentamerida - Parastrophinidae
Parastrophina sp. Schuchert and LeVene 1929
Parastrophinella sp. Schuchert and Cooper 1931
 Orthida - Dicoelosiidae
 Orthida - Dalmanellidae
Dalmanella "sp. A" Hall and Clarke 1892
 Orthida - Tyronellidae
 Orthida - Platystrophiidae
 Orthida - Glyptorthidae
 Atrypida - Atrypinidae
Spirigerina (Eospirigerina) hibernica
entered Spirigerina (Eospirigerina) hibernica (Reed)