Section G, Shipshaw River (Ordovician of Canada)

Where: Quebec, Canada (48.7° N, 71.2° W: paleocoordinates 24.1° S, 47.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Climacograptus spiniferus - Climacograptus pygmaeus graptolite zone, Galets Formation, Edenian (451.0 - 450.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shelly/skeletal packstone

• Calcarenites (echinodennal grainstones); in massive beds up to 1 m thick, averaging 50 cm; shale almost absent

Size class: macrofossils

Reposited in the GSC

Primary reference: S. Desbiens and P. J. Lespérance. 1989. Stratigraphy of the Ordovician of the Lac Saint-Jean and Chicoutimi outliers, Quebec. Canadian Journal of Earth Sciences 26(6):1185-1202 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 192340: authorized by Pete Wagner, entered by Pete Wagner on 23.03.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Atrypida - Cyclospiridae
Trilobita
 Corynexochida - Illaenidae
"Illaenus americanus" = Thaleops laurentiana
"Illaenus americanus" = Thaleops laurentiana Amati and Westrop 2004 trilobite
 Asaphida - Asaphidae
Isotelus "sp. 2" Dekay 1824 trilobite
Isotelus gigas Dekay 1824 trilobite
 Phacopida - Calymenidae
"Flexicalymene senaria" = Flexicalymene (Flexicalymene) senaria
"Flexicalymene senaria" = Flexicalymene (Flexicalymene) senaria Conrad 1841 trilobite
 Phacopida - Cheiruridae
Ceraurus matranseris Sinclair 1947 trilobite