Baillie Hamilton Island (GSC C26942) (Devonian of Canada)

Where: Northwest Territories, Canada (76.0° N, 94.6° W: paleocoordinates 2.8° S, 25.7° W)

• small collection-level geographic resolution

When: Lochkovian (419.2 - 410.8 Ma)

• Unnamed formation that overlies the Cape Phillips Fm.

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, argillaceous lime mudstone and packstone

• Thin to medium bedded argillaceous lime mudstone to packestone.

Preservation: replaced with silica

Reposited in the GSC

Primary reference: D. M. Rohr and R. E. Smith. 1978. Lower Devonian Gastropoda from the Canadian Arctic Islands. Canadian Journal of Earth Sciences 15:1228-1241 [J. Alroy/M. Sommers/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3750: authorized by John Alroy, entered by Mike Sommers on 09.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• List is gastropods and brachiopods. Fauna also present include "trilobites, pelecypods, auloproid corals, colonial corals, fish, rare to common crinoids, and orthocone cephalopods."
Strophomenata
 Orthotetida - Chilidiopsidae
"Iridostrophia johnsoni" = Iridistrophia
"Iridostrophia johnsoni" = Iridistrophia
 Strophomenida - Strophonellidae
 Strophomenida - Leptostrophiidae
 Strophomenida - Amphistrophiidae
 Strophomenida - Rafinesquinidae
"Leptaena nassichucki" = Leptaena nassichuki
"Leptaena nassichucki" = Leptaena nassichuki Smith 1980
Rhynchonellata
 Pentamerida - Gypidulidae
Gypidula pelagica
ssp. pyraforme
 Spiriferida - Delthyrididae
 Athyridida - Athyrididae
 Atrypida - Atrypidae
 Spiriferinida - Cyrtinidae
Cyrtina sp. Davidson 1858
 Rhynchonellida - Trigonirhynchiidae
Ancillotoechia gutta
ssp. rotunda
 Orthida - Schizophoriidae
Schizophoria fossula
ssp. fossula
Gastropoda
 Cyrtoneritida - Orthonychiidae
"Platyceras (Orthonychia) aff. dentalium" = Orthonychia dentalium
"Platyceras (Orthonychia) aff. dentalium" = Orthonychia dentalium Hall 1862 snail
 Euomphalina - Platyceratidae