The Jumpers, Anticosti Island (Silurian of Canada)

Also known as Anticosti Island, The Jumpers, Chicotte Formation Member 1

Where: Québec, Canada (49.4° N, 63.6° W: paleocoordinates 21.1° S, 35.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Icriodella inconstans conodont zone, Brisantes Member (Chicotte Formation), Alexandrian (443.4 - 436.0 Ma)

• Was member 1. This is Brisantes now.

• member-level stratigraphic resolution

Environment/lithology: brown limestone and gray shale

• Environmental call by T. Hanson
• Massive- to thick-bedded, white to pink and brown, medium to coarse skeletal, crinoidal grainstone, less coarse than overlying beds.

Size classes: macrofossils, microfossils

Collection methods: Icriodella inconstans Zone conodonts. Laterally, bioherms are present, containing tabulate corals (halvsitids, favositids and heliolitids, and stromatoporids.

Primary reference: C. R. Barnes, A. A. Petryk, and T. E. Bolton. 1981. Anticosti Island, Québec. In P. J. Lespérance (ed.), Field meeting, Anticosti-Gaspé, Québec, 1981: IUGS Subcommssion on Silurian Stratigraphy, Ordovician-Silurian Boundary Working Group Guidebook 1:1-24 [S. Holland/T. Hanson/S. Bruning]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 24441: authorized by Steven Holland, entered by Tori Hanson on 07.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Crinoidea
 Monobathrida - Eucalyptocrinitidae
Eucalyptocrinites sp. Goldfuss 1831 Sea lily
Trilobita
 Corynexochida - Illaenidae
Stenopareia sp. Holm 1886 trilobite
Gastropoda
 Euomphalina - Platyceratidae
Cyclonema sp. Hall 1852 snail
Platyceras sp. Conrad 1840 snail
 Bellerophontida - Bucaniidae
Salpingostoma sp. Roemer 1876 snail
Bivalvia
 Myalinida - Ambonychiidae
Ambonychia sp. Hall 1847 clam
Rhynchonellata
 Spiriferida - Cyrtiidae
 Pentamerida - Stricklandiidae
Anthozoa
 Stauriida - Kodonophyllidae
 Cystiphyllida - Tryplasmatidae
Porpites sp. Schlotheim 1820 horn coral