White Head Fm, Perce, U. Llandovery, 61-4 - Patzkowsky (Silurian of Canada)

Where: Quebec, Canada (48.5° N, 64.2° W: paleocoordinates 22.6° S, 35.5° W)

• coordinate based on political unit

• local area-level geographic resolution

When: unit 8 Member (White Head Formation), Llandovery (443.4 - 433.4 Ma)

• White Head Formation is divided into 9 numbered units. This is from unit 8, with unit 1 being at the base of the formation.

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

• 12 cm beds of brown, very fine sublithographic limestone with shaley interbeds to about 2 cm.

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 12282: authorized by Mark Patzkowsky, entered by Zack Krug on 17.10.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Brachiopods only.
Show authors, comments, and common names
unclassified
  -
"orthacid" indet., "dalmanellacids" indet., plectambonitacids indet., "strophomenacids" indet., ? Homeospira sp., atrypacid indet. n. gen., athyridacid indet. n. gen.
Strophomenata
 Orthotetida - Triplesiidae
Streptis sp.
Streptis sp. Davidson 1881
 Strophomenida - Sowerbyellidae
Eoplectodonta cf. striatacostatus
Eoplectodonta cf. striatacostatus Twenhofel 1928
Twenhofel