G-29 Grosse-Roches, Gaspé Peninsula (Cambrian of Canada)

Where: Quebec, Canada (48.9° N, 67.2° W: paleocoordinates 32.7° S, 71.1° W)

• coordinate based on nearby landmark

When: Crepicephalus trilobite zone, Grosses-Roches Formation, Marjumian (504.5 - 497.0 Ma)

• Lower part of Grosses-Roches

• member-level stratigraphic resolution

Environment/lithology: limestone

• limestone conglomerate boulders

Size class: macrofossils

Primary reference: F. Rasetti. 1946. Early Upper Cambrian Trilobites from Western Gaspé. Journal of Paleontology 20(5):442-462 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 235509: authorized by Pete Wagner, entered by Pete Wagner on 15.07.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
  - Llanoaspididae
Amquia truncata
Amquia truncata trilobite
 Corynexochida - Dolichometopidae
Hemirhodon simplex
 Ptychopariida - Kingstoniidae
"Homodictya imitatrix" = Blountia, Blountia nasuta, Kingstonia quebecensis, Kingstonia gaspensis
"Homodictya imitatrix" = Blountia trilobite
Blountia nasuta Rasetti 1946 trilobite
Kingstonia gaspensis Rasetti 1946 trilobite
 Ptychopariida - Norwoodiidae
Holcacephalus cf. tener
 Ptychopariida - Catillicephalidae
"Cephalocoelia impressa" = Catillicephala
"Cephalocoelia impressa" = Catillicephala trilobite
 Ptychopariida - Tricrepicephalidae
Tricrepicephalus "sp. 1", Meteoraspis borealis
Tricrepicephalus "sp. 1" Kobayashi 1935 trilobite
Meteoraspis borealis Lochman 1938 trilobite
 Olenida - Cedariidae
Cedaria gaspensis