Anticosti Island, Jupiter Formation Member 1 Graptolites (Silurian of Canada)

Where: Québec, Canada (49.5° N, 63.6° W: paleocoordinates 21.1° S, 35.7° W)

• coordinate estimated from map

• local area-level geographic resolution

When: 1 Member (Jupiter Formation), Alexandrian (443.4 - 436.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: burrowed, blue lime mudstone and burrowed, gray shale

• Environmental call by T. Hanson.
• "[V]ery thin- to medium-bedded, grey-blue, lime mudstone and skeletal wackestone with rare crinoidal packstone; these limestones alternate with green-grey shale which compromises about 40 percent of the unit." Lithology from C. R. Barnes, A. A.Petryk, T. E. Bolton. 1981. Anticosti Island, Québec. Field meeting, Anticosti-Gaspé, Québec, 1981: IUGS Subcommssion on Silurian Stratigraphy, Ordovician-Silurian Boundary Working Group Guidebook 1 : 1-24. Edited by P. J. Lespérance.

Size classes: macrofossils, mesofossils

Collection methods: Graptolites only. From Petryk's 1975, 1976, 1977, and 1979 collections. Collections 77AP49-1-2F amd 77AP44-4-2LF.

Primary reference: J. Riva and A. A. Petryk. 1981. Graptolites from the Upper Ordovician and Lower Silurian of Anticosti Island and the position of the Ordovician-Silurian boundary. Field meeting, Anticosti-Gaspé, Québec, 1981: IUGS Subcommssion on Silurian Stratigraphy, Ordovician-Silurian Boundary Working Group, Stratigraphy and Paleontology 2:159-164 [S. Holland/T. Hanson/S. Holland]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 24822: authorized by Steven Holland, entered by Tori Hanson on 20.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Monograptidae
"Monograptus cf. lobiferus" = Campograptus lobiferus
"Monograptus cf. lobiferus" = Campograptus lobiferus M'Coy 1850 graptolite
 Graptoloidea - Normalograptidae
"Climacograptus normalis" = Normalograptus normalis
"Climacograptus normalis" = Normalograptus normalis Lapworth 1877 graptolite