GSC loc. C-87138 - Graham Island: Late/Upper Toarcian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Nautilida - Cenoceratidae
Cenoceras cf. intermedius (Sowerby 1816)
recombined as Cenoceras intermedium
Cephalopoda - Ammonitida - Hildoceratidae
Grammoceras sp.
Podagrosites latescens (Simpson 1843)
recombined as Pseudogrammoceras latescens
Cephalopoda - Ammonitida - Phymatoceratidae
Phymatoceras cf. crassicosta Merla 1932
recombined as Denckmannia crassicosta
see common names

Geography
Country:Canada State/province:British Columbia
Coordinates: 53.4° North, 132.3° West (view map)
Paleocoordinates:4.5° North, 126.4° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Jurassic Epoch:Early/Lower Jurassic
Stage:Toarcian 10 m.y. bin:Jurassic 3
Key time interval:Late/Upper Toarcian
Age range of interval:180.10000 - 175.60000 m.y. ago
Stratigraphy
Geological group:Maude Formation:Whiteaves
Local section:Section 7 - Graham Island Local bed:48.00-54.00 m
Local order:bottom to top
Stratigraphic resolution:group of beds
Stratigraphy comments: Hillebrandti Zone; Meters indicate distance from base of section
Lithology and environment
Primary lithology:concretionary lithified calcareous siltstone
Environment:marine indet.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:GSC
Metadata
Database number:56405
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate
Created:2005-11-18 01:01:06 Last modified:2006-04-04 07:40:13
Access level:the public Released:2005-11-18 01:01:06
Creative Commons license:CC BY
Reference information

Primary reference:

15025. G. K. Jakobs. 1997. Toarcian (Early Jurassic) ammonoids from western North America. Geological Survey of Canada, Bulletin 428:137pp. [M. Aberhan/S. Nurnberg/S. Nurnberg]