Rohr 00R015. Laignet Point: Cassinian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Pterobranchia - Graptoloidea - Phyllograptidae
Pseudophyllograptus informal sp. A. Williams in Williams et al. 1987 Cooper and Fortey 1982
Trilobita - Asaphida - Asaphidae
Isoteloides canalis (Whitfield 1886)
Trilobita - Proetida - Dimeropygidae
Ischyrotoma anataphra Fortey 1979
Trilobita - Proetida - Bathyuridae
Bathyurellus abruptus Billings 1865
Bathyurellus platypus Fortey 1979
Grinnellaspis flabelliformis (Fortey 1979)
original and current combination Punka flabelliformis
Benthamaspis gibberula (Billings 1865)
Bathyurus gibberulus
Uromystrum marginatus (Billings 1865)
recombined as Uromystrum marginiatus
Petigurus nero (Billings 1865)
Jeffersonia angustimarginata Boyce 1989
synonym of Jeffersonia jenni
Jeffersonia timon (Billings 1865)
Trilobita - Phacopida - Pliomeridae
Strotactinus insularis (Billings 1865)
Gastropoda - Euomphalina - Macluritidae
Maclurites sp. Le Sueur 1818
Gastropoda - Murchisoniina - Hormotomidae
Plethospira aff. cassina (Whitfield 1886)
Rohr et al. 2001
Rostroconchia - Conocardiida - Eopteriidae
Euchasma blumenbachi (Billings 1859)
see common names

Geography
Country:Canada State/province:Newfoundland and Labrador
Coordinates: 50.7° North, 57.4° West (view map)
Paleocoordinates:30.6° South, 46.7° West
Geographic resolution:outcrop
Time
Period:Ordovician Epoch:Early/Lower Ordovician
10 m.y. bin:Ordovician 1-2
Key time interval:Cassinian Trilobite zone: Benthamaspis gibberula
Age range of interval:482.00000 - 470.00000 m.y. ago
Stratigraphy
Geological group:St. George Formation:Catoche Member:Laignet Point
Local section:Knight 1991 Sect. 9 Local bed:97.03 m
Local order:bottom to top
Stratigraphic resolution:formation
Stratigraphy comments: Uppermost mound bed, 97.3 m above base of formation
Lithology and environment
Primary lithology: "limestone"
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Museum repositories:GSC
Metadata
Also known as:= 2000F026 = G of Williams et al. 1987 (pg. 458 f. 2) = 1984F121
Database number:133140
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:J. Alroy Research group:marine invertebrate
Created:2012-09-03 09:10:46 Last modified:2012-10-28 01:16:56
Access level:the public Released:2012-09-03 09:10:46
Creative Commons license:CC BY
Reference information

Primary reference:
42850. D. M. Rohr, W. D. Boyce, and E. A. Measures. 2008. The rostroconch mollusc Euchasma Billings, 1865 from the Lower Ordovician Catoche Formation, western Newfoundland. Newfoundland Department of Mines and Energy, Report 08(1):79-91 [P. Wagner/P. Wagner]

Secondary references:

15248 D. M. Rohr, E.A. Measures, W.D. Boyce and I. Knight. 2001. Early Ordovician gastropods of the Barbace Cove Member (Boat Harbour Formation) and Catoche Formation, western Newfoundland. Current Research (2001) Newfoundland Department of Mines and Energy Geological Survey, Report 2001 2001(1):113-126 [P. Wagner/P. Wagner]