AK4b, Houston Point, 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: 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

Collection methods: collected area: 4 m²

Primary reference: J. Jin and L. E. Popov. 2008. A new genus of Late Ordovician-Early Silurian pentameride brachiopods and its phylogenetic relationships. Acta Palaeontologica Polonica 53(2):221-236 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 164001: authorized by Pete Wagner, entered by Pete Wagner on 22.11.2014, edited by Mihaela Krause

Creative Commons license: CC BY (attribution)

Taxonomic list

Craniata
 Trimerellida - Trimerellidae
Rhynchonellata
 Pentamerida - Parastrophinidae
Protanastrophia repanda Jin and Popov 2008
Parastrophinella sp.1 Schuchert and Cooper 1931
 Pentamerida - Pentameridae
 Pentamerida - Clorindidae
Clorinda parvolinguifera1 Sapelnikov 1972
 Pentamerida - Gypidulidae
Gypidulina sp.1 Rzhonsnitzkaya 1956
 Rhynchonellida - Rhynchotrematidae
 Atrypida - Lissatrypidae
"Meifodia discoidalis" = Cerasina discoidalis1
"Meifodia discoidalis" = Cerasina discoidalis1 Jin et al. 1993
 Atrypida - Septatrypidae
Septatrypa varians1 Poulsen 1943
Strophomenata
 Strophomenida - Leptostrophiidae
Eomegastrophia sp.1 Cocks 1967