AK1a, Akimiski Island (Silurian of Canada)

Where: Nunavut, Canada (53.2° N, 81.1° W: paleocoordinates 15.3° S, 43.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Attawapiskat Formation, Telychian (438.5 - 433.4 Ma)

• Uppermost Telychian

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone

• coral-stromatoporoid reef

Size class: macrofossils

Reposited in the GSC, ROM

• collected area: 4 m²

Primary reference: C. A. C. Gushulak. 2016. First Major Appearance of Brachiopod-Dominated Benthic Shelly Communities in the Reef Ecosystem during the Early Silurian. Western University [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 184875: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 28.03.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Strophomenida - Sowerbyellidae
Eoplectodonta sp. Kozlowski 1929
 Strophomenida - Leptestiidae
Leangella sp. Opik 1933
 Strophomenida - Leptostrophiidae
Eomegastrophia sp. Cocks 1967
 Strophomenida - Rafinesquinidae
Leptaena sp. Dalman 1828
 Athyridida - Meristellidae
Meristina sp. Hall 1867
 Spiriferida - Cyrtiidae
 Spiriferida - Delthyrididae
Howellella porcata Jin et al. 1993
 Pentamerida - Gypidulidae
 Pentamerida - Clorindidae
Clorinda tumidula Billings 1866
 Pentamerida - Pentameridae
 Atrypida - Atrypidae
Gotatrypa hedei Struve 1966
 Atrypida - Lissatrypidae
"Meifodia discoidalis" = Cerasina discoidalis Jin et al. 1993
Septatrypa varians Poulsen 1943
 Rhynchonellida - Rhynchotrematidae
 Orthida - Hesperorthidae
Hesperorthis sp. Schuchert and Cooper 1931
 Trimerellida - Trimerellidae