Jackass Mountain Group: Neocomian - Aptian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bennettitales
Ptilophyllum montanense
Pterophyllum rectangulare n. sp.
Coniferales - Podocarpaceae
Elatocladus smittiana
Coniferales
Desmiophyllum sp. Lesquereux 1878
Pinopsida - Pinales - Taxaceae
Elatides splendida n. sp.
Elatides curvifolia (Dunker 1846)
Polypodiopsida - Gleicheniaceae
Gleichenites nordenskioldi
Polypodiopsida
Cladophlebis impressa n. sp.
Cladophlebis ? heterophylla Fontaine 1892
Cladophlebis virginiensis Fontaine 1889
Cladophlebis parva Fontaine 1889
Polypodiopsida - Cyatheales - Cyatheaceae
Coniopteris ? brevifolia
Polypodiopsida - Gleicheniales - Matoniaceae
Phlebopteris ? muensteri
Polypodiopsida - Schizaeales - Schizaeaceae
? Ruffordia ? gopperti
Cycadopsida - Cycadales
Nilssonia sp. (Brongniart 1825)
Ginkgoopsida - Caytoniales - Caytoniaceae
Sagenopteris sp. Presl 1838
Sphenopteridae
Sphenopteris latiloba Fontaine 1889
see common names

Geography
Country:Canada State/province:British Columbia
Coordinates: 51.0° North, 123.9° West (view map)
Paleocoordinates:38.9° North, 77.6° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Early Cretaceous
10 m.y. bin: Cretaceous 1-2 - Cretaceous 3
*Period:Early/Lower Cretaceous
*International age/stage:Neocomian - Aptian
Key time interval: Neocomian - Aptian
Age range of interval: 145 - 113 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Jackass Mountain
Stratigraphic resolution:member
Stratigraphy comments: Flora collected from Division C (uppermost division) Division by Duffell and McTaggart (1952)
Lithology and environment
Primary lithology: argillaceous sandstone
Secondary lithology: conglomerate
Includes fossils?Y
Lithology description: 5000 feet of greywacke and argillite with minor conglomerate
Environment:coastal indet.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (float),surface (in situ),mechanical,field collection
Reason for describing collection:biostratigraphic analysis
Collection method comments: composite collection from six localities
Metadata
Also known as:Division C
Database number:24884
Authorizer:A. Rees Enterer:D. Sunderlin
Modifier:D. Sunderlin Research group:paleobotany
Created:2002-08-22 08:15:08 Last modified:2002-08-22 11:15:13
Access level:the public Released:2002-08-22 08:15:08
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]