Nikanassin Composite: Neocomian - Barremian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Polypodiopsida - Gleicheniales - Matoniaceae
Phlebopteris ? elongata
Polypodiopsida - Cyatheales - Cyatheaceae
Coniopteris brevifolia
Polypodiopsida - Equisetales - Equisetaceae
Equisetites lyelli
Gnetopsida
Pityophyllum cf. nodenskioldi
Coniferales - Podocarpaceae
Podozamites lanceolatus (Lindley and Hutton 1840)
Cycadopsida - Cycadales
Nilssonia nigracollensis
Ginkgoopsida - Ginkgoales - Ginkgoaceae
Ginkgo nana (Dawson 1885)
Ginkgo pluripartita Heer 1876
Ginkgoopsida - Czekanowskiales
Czekanowskia cf. rigida
see common names

Geography
Country:Canada State/province:Alberta
Coordinates: 53.0° North, 117.3° West (view map)
Paleocoordinates:52.4° North, 61.3° West
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Cretaceous Epoch: Early Cretaceous
10 m.y. bin: Cretaceous 1-2 - Cretaceous 2
*Period:Early/Lower Cretaceous
*International age/stage:Neocomian - Barremian
Key time interval: Neocomian - Barremian
Age range of interval: 145 - 121.4 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Nikanassin
Stratigraphic resolution:formation
Stratigraphy comments: correlative with the Kootenay Formation
Lithology and environment
Primary lithology: sandstone
Secondary lithology: "shale"
Includes fossils?Y
Includes fossils?Y
Environment:coastal indet.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (float),surface (in situ),field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:24847
Authorizer:A. Rees Enterer:D. Sunderlin
Modifier:D. Sunderlin Research group:paleobotany
Created:2002-08-21 13:55:13 Last modified:2002-08-21 16:55:18
Access level:the public Released:2002-08-21 13:55:13
Creative Commons license:CC BY
Reference information

Primary reference:
6947.PGAP W. A. Bell. 1956. Lower Cretaceous Floras of Western Canada. Geological Survey of Canada Memoir 285 (2528)1-153 [A. Rees/D. Sunderlin/D. Sunderlin]