GSC 80555 and 80051, Attawapiskat River (Silurian of Canada)

Where: Ontario, Canada (53.0° N, 84.5° W: paleocoordinates 14.5° S, 45.6° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Ekwan River Formation, Telychian (438.5 - 433.4 Ma)

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

• 1.2 m thick

Size class: macrofossils

Reposited in the GSC

Primary reference: J. Jin, W. G. E. Caldwell, and B. S. Norford. 1993. Early Silurian brachiopods and biostratigraphy of the Hudson Bay Lowlands, Manitoba, Ontario and Quebec. Bulletin Geological Survey of Canada 457:1-221 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 77345: authorized by Wolfgang Kiessling, entered by Uta Merkel on 09.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

 Panderodontida - Panderodontidae
Panderodus sp. Ethington 1959 conodont
 Strophomenida - Sowerbyellidae
 Athyridida - Meristellidae
Whitfieldella sulcatina Jin et al. 1993
Whitfieldella pygmaea Jin et al. 1993
 Rhynchonellida - Rhynchotrematidae
 Pentamerida - Pentameridae
 Atrypida - Lissatrypidae
Parmula hemisphaerica n. sp., "Meifodia discoidalis" = Cerasina discoidalis
Parmula hemisphaerica n. sp. Jin et al. 1993
"Meifodia discoidalis" = Cerasina discoidalis Jin et al. 1993
 Atrypida - Septatrypidae
"Atrypopsis varians" = Septatrypa varians Poulsen 1943
Atrypopsis severnensis Jin et al. 1993
 Spiriferida - Delthyrididae
Howellella porcata Jin et al. 1993
Howellella elegans Muir-Wood 1925