AN27: Aeronian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Proetida - Proetidae
Proetus sp. Steininger 1831
2 individuals
Trilobita - Phacopida - Phacopidae
Acernaspis orestes (Billings 1860)
1 individual
Trilobita - Phacopida - Cheiruridae
? Hadromeros sp. Lane 1971
1 individual
Trilobita - Phacopida - Calymenidae
4 individuals
see common names

Geography
Country:Canada State/province:Quebec
Coordinates: 49.3° North, 62.4° West (view map)
Paleocoordinates:21.3° South, 34.9° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Silurian Epoch:Llandovery
Stage:Aeronian 10 m.y. bin:Silurian 1
Key time interval:Aeronian
Age range of interval:440.80000 - 438.50000 m.y. ago
Stratigraphy
Formation:Gun River
Lithology and environment
Primary lithology: lithified lime mudstone
Secondary lithology: lithified "shale"
Lithology description: hard, slabby well-bedded micritic limestones and minor shale
Environment:open shallow subtidal
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:GSC
Metadata
Database number:186040
Authorizer:M. Hopkins Enterer:M. Hopkins
Modifier:M. Hopkins Research group:marine invertebrate
Created:2017-06-07 11:43:35 Last modified:2017-08-11 17:21:04
Access level:the public Released:2017-06-07 11:43:35
Creative Commons license:CC BY
Reference information

Primary reference:
61764. B. D. E. Chatterton and R. Ludvigsen. 2004. Early Silurian trilobites of Anticosti Island, Québec, Canada. Palaeontographica Canadiana 22 [M. Hopkins/M. Hopkins]