Anticosti Island, Cap Jupiter, Jupiter Formation Member 3 (Silurian of Canada)

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

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Richardson Member (Jupiter Formation), Aeronian (440.8 - 438.5 Ma)

• Member 3 is now Richardson

• member-level stratigraphic resolution

Environment/lithology: gray shale

• Environmental call by T. Hanson.
• 24 m of green-gray shale; locally sandy; poorly fossiliferous.

Size class: macrofossils

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 24418: authorized by Steven Holland, entered by Tori Hanson on 07.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Unit is poorly fossiliferous; taxonomic list includes specimens that are likely present in the Member but no organisms are specified.
Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Monograptidae
Monograptus sedgewickii
Crinoidea
 Sagenocrinida - Sagenocrinitidae
Sagenocrinites sp.
 Monobathrida - Eucalyptocrinitidae
Eucalyptocrinites sp.
Eucalyptocrinites sp. Goldfuss 1831 Sea lily
 Diplobathrida - Dimerocrinitidae
Dimerocrinites elegans
Dimerocrinites elegans Springer 1928 Sea lily
Rhombifera
 Hemicosmitoida - Caryocrinitidae
Caryocrinites ornatus
Ostracoda
 Palaeocopida - Beyrichiidae
Bolbineossia labrosa
 Beyrichiacea - Zygobolbidae
Zygobolba decora
Trilobita
 Lichida - Lichidae
"Arctinurus anticostiensis" = Anadesma shallopensis
"Arctinurus anticostiensis" = Anadesma shallopensis Twenhofel 1928 trilobite
 Phacopida - Calymenidae
Diacalymene schucherti
Diacalymene schucherti Twenhofel 1928 trilobite
 Phacopida - Encrinuridae
Encrinurus anticostiensis
 Phacopida - Dalmanitidae
Dalmanites jupiterensis
Dalmanites jupiterensis Twenhofel 1928 trilobite
 Phacopida - Phacopidae
Acernaspis orestes
Acernaspis orestes Billings 1860 trilobite
Strophomenata
 Strophomenida - Leptostrophiidae
Brachyprion spp.
Brachyprion spp. Shaler 1865
 Orthotetida - Triplesiidae
Triplesia anticostiensis
Rhynchonellata
 Atrypida - Atrypinidae
Atrypina jupiterensis
 Pentamerida - Stricklandiidae
"Stricklandia salteri" = Microcardinalia (Chiastodoca) salterii, Ehlersella davidsoni
"Stricklandia salteri" = Microcardinalia (Chiastodoca) salterii Billings 1868
 Spiriferida - Cyrtiidae
Eospirifer radiatus
Eospirifer radiatus Sowerby 1834
Gastropoda
 Bellerophontida - Bucaniidae
Salpingostoma orientalis
Salpingostoma orientalis Twenhofel 1928 snail
Cephalopoda
 Discosorida - Discosoridae
Discosorus sp.
Discosorus sp. Hall 1852
 Oncocerida - Trimeroceratidae
Eotrimeroceras jupiterrense
 Oncocerida - Acleistoceratidae
Amphicyrtoceras futile
 Actinocerida - Huroniidae
Huroniella sp.
Huroniella sp. Foerste 1924