A582D (Ordovician of Canada)

Where: Quebec, Canada (49.6° N, 62.8° W: paleocoordinates 23.7° S, 38.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Easton Member (Vaureal Formation), Katian (453.0 - 445.2 Ma)

• Collection A582D of Dewing 1999. Same collection names are used by Jin 1989, Jin and Zhan 2008, and Li and Copper 2006.

•The collection is noted by Dewing to be from the Easton Mbr. Note that the name Easton is not used in other Anticosti references, but Dewing locates it between the Tower and Lavache mbrs. Although there are no formal descriptions of the Easton Mbr., it is stratigraphically similar to the Tower Mbr.

• bed-level stratigraphic resolution

Environment/lithology: lithified, bioturbated, calcareous lime mudstone

• There are no formal descriptions of the Easton Mbr., but it is stratigraphically similar to the Tower Mbr., which is described below.

•Member description taken from 2007 Long. Tempestite frequency curves: a key to Late Ordovician and Early Silurian subsidence, sea-level change, and orbital forcing in the Anticosti foreland basin, Quebec, Canada. Can. J. Earth Sci. Vol. 44, 413-431. "The Tower member consists of 23 to 35 m of interbedded, graded-laminated micrite and calcareous mudstone with only minor evidence of bioturbation, mostly as surface trails (Figs. 3C, 3D). Rare calcarenite beds reflect intense storm events."

Size classes: macrofossils, mesofossils

Preservation: original calcite

Collected by P. Copper

Collection methods: bulk,

Primary reference: K. Dewing. 1999. Late Ordovician and Early Silurian strophomenid brachiopods of Anticosti Island, Quebec, Canada. In A. D. McCracken (ed.), Palaeontographica Canadiana 17:1-143 [S. Finnegan/S. Finnegan]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 159196: authorized by Seth Finnegan, entered by Seth Finnegan on 29.07.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• Brachiopods only.
Strophomenata
 Strophomenida - Strophomenidae
Tetraphalerella hecuba Billings 1860
 Strophomenida - Furcitellidae
Megamyonia arethusa Billings 1862
 Strophomenida - Sowerbyellidae
"Sowerbyella (Eochonetes) vaurealensis" = Eochonetes vaurealensis
"Sowerbyella (Eochonetes) vaurealensis" = Eochonetes vaurealensis Dewing 1999