GSC 80613 and 80128, Severn River (Silurian of Canada)

Also known as Reef 3666

Where: Ontario, Canada (55.7° N, 88.1° W: paleocoordinates 11.2° S, 45.9° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

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

• 7.5 m of bioherm core

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 77332: authorized by Wolfgang Kiessling, entered by Uta Merkel on 09.01.2008, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Conodonta
 Panderodontida - Panderodontidae
Panderodus sp., Panderodus unicostatus, "Panderodus recurvatus" = Panderodus panderi
Panderodus sp. Ethington 1959 conodont
Panderodus unicostatus Branson and Mehl 1933 conodont
"Panderodus recurvatus" = Panderodus panderi Stauffer 1940 conodont
 Prioniodontida - Balognathidae
? Pterospathodus celloni
? Pterospathodus celloni Walliser 1964 conodont
Rhynchonellata
 Spiriferida - Delthyrididae
Howellella elegans
Howellella elegans Muir-Wood 1925
 Atrypida - Septatrypidae
Atrypopsis severnensis n. sp., Atrypoidea praelingulata n. sp.
Atrypopsis severnensis n. sp. Jin et al. 1993
Atrypoidea praelingulata n. sp. Jin et al. 1993
 Atrypida - Atrypidae
Atrypa (Gotatrypa) gibbosa
 Orthida - Hesperorthidae
Hesperorthis davidsoni
Hesperorthis davidsoni de Verneuil 1845
 Pentamerida - Clorindidae
Clorinda mesoplicata
Gastropoda
 Bellerophontida - Bucaniidae
"Megalomphala robusta" = Bucania robusta2
"Megalomphala robusta" = Bucania robusta2 Whiteaves 1904 snail
 Euomphalina - Platyceratidae
"Strophostylus filicinctus" = Cyclonema filicinctus2, "Gyronema dowlingii" = Cyclonema dowlingii2, "Diaphorostoma perforatum" = Platyostoma perforatum2
"Strophostylus filicinctus" = Cyclonema filicinctus2 Whiteaves 1904 snail
"Gyronema dowlingii" = Cyclonema dowlingii2 Whiteaves 1906 snail
"Diaphorostoma perforatum" = Platyostoma perforatum2 Whiteaves 1904 snail
 Euomphalina - Oriostomatidae
"Gyronema cf. speciosum" = Oriostoma speciosum2
"Gyronema cf. speciosum" = Oriostoma speciosum2 Whiteaves 1892 snail
 Euomphalina - Anomphalidae
Pycnomphalus colemani n. sp.2
Pycnomphalus colemani n. sp.2 Parks 1915 snail
 Euomphalina - Euomphalidae
Poleumita hudsonica n. sp.1, Euomphalus rotundus n. sp.2, Euomphalus minor n. sp.2, Euomphalopterus cf. valeria2, "Euomphalopterus tyrrelli n. sp." = Euomphalopterus limatoidea1
Poleumita hudsonica n. sp.1 Parks 1913 snail
Euomphalus rotundus n. sp.2 Parks 1915 snail
Euomphalus minor n. sp.2 Parks 1915 snail
Euomphalopterus cf. valeria2 Billings 1865 snail
"Euomphalopterus tyrrelli n. sp." = Euomphalopterus limatoidea1 Kindle 1903 snail
 Murchisoniina - Loxonematidae
Loxonema magnum2
Loxonema magnum2 Whitfield 1878 snail
 Murchisoniina - Gosseletinidae
"Eotomaria cf. galtensis" = Spiroraphe galtensis2
"Eotomaria cf. galtensis" = Spiroraphe galtensis2 Billings 1865 snail
 Murchisoniina - Eotomariidae
Liospira stevensoni n. sp.2
Liospira stevensoni n. sp.2 Parks 1915 snail
 Murchisoniina - Murchisoniidae
"Coelidium cf. macrospira" = Cyrtostropha macrospira2
"Coelidium cf. macrospira" = Cyrtostropha macrospira2 Hall 1852 snail
 Murchisoniina - Hormotomidae
"Coelidium cf. bivittata" = Ptychocaulus bivittata2
"Coelidium cf. bivittata" = Ptychocaulus bivittata2 Hall 1852 snail
Trilobita
 Corynexochida - Styginidae
Meroperix aquilonaris, ? Goldillaenus sp.
? Goldillaenus sp. Schindewolf 1924 trilobite
 Phacopida - Encrinuridae
Encrinurus (Perryus) severnensis
Encrinurus (Perryus) severnensis Gass and Mikulic 1982 trilobite
 Phacopida - Cheiruridae
? Cheirurus sp.
? Cheirurus sp. Beyrich 1845 trilobite
1Parks 1913; 2Parks 1915