Section AV4, 126-127mT, Avalanche Lake: Sheinwoodian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rostroconchia - Conocardiida - Pseudobigaleaidae
Avalanchia pterocarina Caldwell and Chatterton 1995
Caldwell and Chatterton 1995
Johnston and Chatterton 1983
Demospongiae - Anthaspidellidae
Patellispongia alternata Rigby and Chatterton 1989
see common names

Geography
Country:Canada State/province:Northwest Territories
Coordinates: 62.4° North, 127.1° West (view map)
Paleocoordinates:6.9° North, 51.6° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Silurian Epoch:Wenlock
Stage:Sheinwoodian 10 m.y. bin:Silurian 2
Key time interval:Sheinwoodian
Age range of interval:433.40000 - 430.50000 m.y. ago
Stratigraphy
Formation:Delorme
Local section:AV4 Local bed:127 m
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: talus sample from 126-127 m above base of the section
Lithology and environment
Primary lithology: lithified lime mudstone
Secondary lithology: lithified wackestone
Lithology description: thin-bedded lime mudstones to wackestone
Environment:offshore indet.
Geology comments: Benthic Assemblage 5
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:121301
Authorizer:W. Kiessling, P. Wagner Enterer:U. Merkel, P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2011-12-02 01:45:32 Last modified:2018-04-26 11:43:01
Access level:the public Released:2011-12-02 01:45:32
Creative Commons license:CC BY
Reference information

Primary reference:
38714. J. K. Rigby and B. D. E. Chatterton. 1999. Silurian (Wenlock) demosponges from the Avalanche Lake area of the Mackenzie Mountains, southwestern District of Mackenzie, Northwest Territories, Canada. Palaeontographica Canadiana 16:1-43 [W. Kiessling/U. Merkel]

Secondary references:

7222 M. W. Caldwell and B. D. E. Chatterton. 1995. Phylogenetic analysis of some Silurian rostroconchs (Mollusca) from northwestern Canada. Canadian Journal of Earth Sciences 32:806-827 [M. Foote/M. Foote/M. Foote]
10957 R. D. Hoare, R. H. Mapes, and T.E. Yancey. 2002. Structure, taxonomy, and epifauna of Pennsylvanian rostroconchs (Mollusca). Journal of Paleontology Memoir 58:1-30 [P. Wagner/P. Wagner/P. Wagner]
7221 D. I. Johnston and B. D. E. Chatterton. 1983. Some silicified Middle Silurian rostroconchs (Mollusca) from the Mackenzie Mountains, N.W.T., Canada. Canadian Journal of Earth Sciences 20:844-858 [M. Foote/M. Foote/M. Foote]