Chaleurs Group, Gaspe Peninsula, Anse a Pierre Fm, 95000 - Patzkowsky (Silurian of Canada)

Where: New Brunswick, Canada (48.2° N, 64.9° W: paleocoordinates 23.5° S, 35.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Costistricklandia lirata brachiopod zone, Anse a Pierre-Loiselle Formation (Chaleurs Group), Telychian (438.5 - 433.4 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified, gray mudstone and lithified sandstone

• Thick bedded grey mudstones with limestone nodules, becoming more abundant toward the top of the formation, and with a few medium to fine-grained sandstone beds near its base; containing a middle marker unit of quartz, feldspar, and rock fragment conglomerates and coarse-grained sandstones.

Size class: macrofossils

Primary reference: T. E. Bolton. 1981. Early Silurian Anthozoa of Chaleurs Group, Port Daniel-Black Cape region, Gaspe Peninsula, Quebec. In T. E. Bolton, P. J. Lesperance (eds.), IUGS Subcommission on Silurian Stratigraphy, Ordovician - Silurian Boundary Working Group, Field Meeting, Anticosti - Gaspe, Quebec, 1981 2:299-314 [M. Patzkowsky/Z. Krug/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 12556: authorized by Mark Patzkowsky, entered by Zack Krug on 19.11.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Anthozoa only.
 Auloporida - Syringoporidae
Syringopora compacta Billings 1858 tabulate coral
 Favositida - Alveolitidae
Alveolites sp. Lamarck 1801 tabulate coral
 Favositida - Favositidae
Favosites forbesi tabulate coral
Favosites gothlandicus Lamarck 1816 tabulate coral
 Heliolitida - Pseudoplasmoporidae
 Heliolitida - Heliolitidae
Heliolites subtabulates tabulate coral
 Heliolitida - Halysitidae
Cystihalysites sp. Chernyshev 1941 tabulate coral
 Cystiphyllida - Tryplasmatidae
"Palaeocyclus rotuloides" = Porpites rotuloides
"Palaeocyclus rotuloides" = Porpites rotuloides Hall 1852 horn coral
 Stauriida - Amplexidae
Amplexoides sp. Wang 1947 horn coral
 Stauriida - Lykophyllidae
Phaulactis sp. Ryder 1926 horn coral
 Stauriida - Streptelasmatidae