AN11B (Silurian of Canada)

Where: Quebec, Canada (49.6° N, 63.4° W: paleocoordinates 20.9° S, 35.5° W)

• coordinate estimated from map

When: Gun River Formation, Aeronian (440.8 - 438.5 Ma)

• basal 3-4 meters

Environment/lithology: open shallow subtidal; lithified marl

• Formation is comprised of hard, slabby, well-bedded micritic limestones and minor shale. Basal 3-4 meters are marl.

Size class: mesofossils

Reposited in the GSC

Primary reference: B. D. E. Chatterton and R. Ludvigsen. 2004. Early Silurian trilobites of Anticosti Island, Qu├ębec, Canada. Palaeontographica Canadiana 22 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 184640: authorized by Melanie Hopkins, entered by Melanie Hopkins on 15.03.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Aulacopleurida - Aulacopleuridae
Harpidella sp. McCoy 1849 trilobite
genus ID questionable
 Phacopida - Phacopidae
Acernaspis sp. Campbell 1967 trilobite
 Phacopida - Calymenidae
Calymene sp. Brongniart 1822 trilobite
 Proetida - Proetidae
"Proetidae" indet. Salter 1864 trilobite