Silliman's Fossil Mount Pelecypods: Richmondian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Solemyida - Ctenodontidae
Ctenodonta carpenderi
Ctenodonta sp. Salter 1852
Ctenodonta cf. subnasuta Ulrich 1894
Bivalvia - Modiomorphida - Modiomorphidae
Modiolodon sp. Ulrich 1894
Whiteavesia sp. Ulrich 1893
Psiloconcha sp. Ulrich 1894
Bivalvia - Cyrtodontida - Cyrtodontidae
Cyrtodonta sp. Billings 1858
Whitella cf. truncata Ulrich 1890
Vanuxemia sp. Billings 1858
see common names

Geography
Country:Canada State/province:Nunavut
Coordinates: 63.7° North, 68.8° West (view map)
Paleocoordinates:8.7° South, 37.2° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Ordovician Epoch: Late Ordovician
Stage: Katian 10 m.y. bin: Ordovician 5
*Period:Middle Ordovician - Late/Upper Ordovician *Local age/stage:Richmondian
Key time interval: Richmondian
Age range of interval: 449.8 - 446 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Lithology and environment
Primary lithology:dolomitic "limestone"
Secondary lithology: carbonaceous "shale"
Includes fossils?Y
Includes fossils?Y
Lithology description: "Throughout the Mount, the top 50 feet of these beds consists of massive dolomite limestone, the next 75 feet of thin-bedded limestone and dolomite, and the lower 175 feet of calcareous shale with some interbedded limestone."
Environment:carbonate indet.
Geology comments: Environmental call by T. Hanson.
Taphonomy
Modes of preservation:mold/impression
Size of fossils:macrofossils
Preservation of anatomical detail:poor
Collection methods and comments
Collection excludes:species names
Collection methods:field collection
Collection size:50 specimens
Reason for describing collection:biostratigraphic analysis
Taxonomic list comments:From Troedsson 1928 and Roy 1941.
Metadata
Database number:24121
Authorizer:S. Holland Enterer:T. Hanson
Modifier:S. Holland Research group:marine invertebrate
Created:2002-07-31 19:26:08 Last modified:2004-10-22 13:02:38
Access level:the public Released:2002-07-31 19:26:08
Creative Commons license:CC BY
Reference information

Primary reference:
6817. A. K. Miller, W. Youngquist, and C. Collinson. 1954. Ordovician cephalopod fauna of Baffin Island. Geological Society of America Memoir 62:1-234 [S. Holland/T. Hanson/T. Hanson]