AN56: Aeronian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Corynexochida - Styginidae
Failleana sp. Chatterton and Ludvigson 1976
9 individuals
Trilobita - Proetida - Tropidocoryphidae
Decoroproetus narbonnei Chatterton and Ludvigsen 2004
2 individuals
recombined as Dalarnepeltis narbonnei
Trilobita - Phacopida - Calymenidae
2 individuals
Trilobita - Phacopida - Phacopidae
Acernaspis orestes (Billings 1860)
13 individuals
Trilobita - Phacopida - Encrinuridae
Encrinurus deomenos Tripp 1962
6 individuals
see common names

Geography
Country:Canada State/province:Quebec County:Anticosti Island
Coordinates: 49.2° North, 62.4° West (view map)
Paleocoordinates:21.4° 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 Member:Macgilvray
Lithology and environment
Primary lithology: lithified lime mudstone
Lithology description: hard, slabby, well-bedded micritic limestone
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:186076
Authorizer:M. Hopkins Enterer:M. Hopkins
Modifier:P. Wagner Research group:marine invertebrate
Created:2017-06-09 11:49:32 Last modified:2018-04-09 15:52:12
Access level:the public Released:2017-06-09 11:49:32
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]