AK2b, north side of Akimiski Island (Silurian of Canada)

Also known as Reef 3542

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

• coordinate estimated from map

• local area-level geographic resolution

When: Pterospathodus amorphognathoides conodont zone, 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

Primary reference: J. Jin. 2005. Reef-dwelling gypiduloid brachiopods in the Lower Silurian Attawapiskat Formation, Hudson Bay region. Journal of Paleontology 79(1):48-62 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 77342: authorized by Wolfgang Kiessling, entered by Uta Merkel on 09.01.2008, edited by Pete Wagner and Mihaela Krause

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Smooth atrypoids1, Leangella sp.1
Strophomenata
 Strophomenida - Sowerbyellidae
Eoplectodonta sp.1, Eoplectodonta hudsonensis1
Eoplectodonta sp.1 Kozlowski 1929
Eoplectodonta hudsonensis1 Jin et al. 1993
 Strophomenida - Leptostrophiidae
Eomegastrophia sp.1
Eomegastrophia sp.1 Cocks 1967
 Strophomenida - Rafinesquinidae
Leptaena sp.1
Leptaena sp.1 Dalman 1828
Rhynchonellata
 Pentamerida - Parastrophinidae
Protanastrophia repanda2, Parastrophinella sp.1
Protanastrophia repanda2 Jin and Popov 2008
Parastrophinella sp.1 Schuchert and Cooper 1931
 Pentamerida - Gypidulidae
Erilevigatella euthylomata, Gypidula akimiskiformis n. sp.
Gypidula akimiskiformis n. sp. Jin 2005
 Pentamerida - Pentameridae
Pentameroides septentrionalis1
 Pentamerida - Clorindidae
Clorinda parvlinguifera1
 Orthida - Hesperorthidae
Hesperorthis sp.1
Hesperorthis sp.1 Schuchert and Cooper 1931
 Spiriferida - Spiriferidae
Spiriferidae indet.1
 Spiriferida - Cyrtiidae
Mictospirifer jini1
 Spiriferida - Delthyrididae
Howellella porcata1
Howellella porcata1 Jin et al. 1993
 Athyridida - Meristidae
Merista rhombiformis1
Merista rhombiformis1 Jin et al. 1993
 Athyridida - Meristellidae
Whitfieldella sulcatina1, Meristina sp.1
Whitfieldella sulcatina1 Jin et al. 1993
Meristina sp.1 Hall 1867
 Atrypida - Lissatrypidae
Parmula hemisphaerica1, Lissatrypa variabilis1, "Meifodia discoidalis" = Cerasina discoidalis1
Parmula hemisphaerica1 Jin et al. 1993
"Meifodia discoidalis" = Cerasina discoidalis1 Jin et al. 1993
 Atrypida - Septatrypidae
Septatrypa severnensis1, Septatrypa varians1
Septatrypa varians1 Poulsen 1943
 Rhynchonellida - Rhynchotrematidae
Rhytidorhachis guttuliformis1
1Gushulak 2016; 2Jin and Popov 2008