Kirkfield Quarry, lots 31-32, off of highway 503, near Kirkfield, Lake Simcoe Ar: Chatfieldian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Artiopoda - Lichida - Lichidae
Hemiarges paulianus (Clarke 1894)
Artiopoda - Asaphida - Asaphidae
Isotelus gigas (Dekay 1824)
Artiopoda - Phacopida - Calymenidae
Artiopoda - Phacopida - Cheiruridae
Ceraurus sp. Green 1832
Artiopoda - Phacopida - Encrinuridae
Rhynchonellata - Atrypida - Anazygidae
Rhynchonellata - Rhynchonellida - Rhynchotrematidae
Rhynchonellata - Orthida - Dalmanellidae
Paucicrura rogata (Sardeson 1892)
Rhynchonellata - Orthida - Platystrophiidae
Platystrophia amoena and Platystrophia amoena longicardinalis
Rhynchonellata - Orthida - Plaesiomyidae
Strophomenata - Strophomenida - Sowerbyellidae
Sowerbyella sericea (Sowerby 1839)
Strophomenata - Strophomenida - Rafinesquinidae
Rafinesquina alternata intermedia and Rafinesquina alternata plana
    = Rafinesquina intermedia Wilson 1944
Wagner 2020
Strophomenata - Strophomenida - Strophomenidae
Opikina platys Wilson 1944
Lingulata - Lingulida - Trematidae
Lingulata - Lingulida - Pseudolingulidae
Lingula scutum Sinclair 1945
Lingulata - Lingulida - Lingulidae
Lingula sp. Bruguiére 1797
Stenolaemata - Trepostomata - Halloporidae
Stenolaemata - Trepostomata - Aisenvergiidae
Eridotrypa aedilis Eichwald 1855
Stenolaemata - Trepostomata - Trematoporidae
Batostoma sp. Ulrich 1882
Stenolaemata - Trepostomida - Monticuliporidae
Prasopora simulatrix and Prasopora simulatrix orientalis
Mesotrypa angularis parvatrypa
Cephalopoda - Endocerida - Endoceratidae
Bivalvia - Solemyida - Ctenodontidae
Bivalvia - Myalinida - Ambonychiidae
Clionychia undata (Emmons 1842)
Ambonychia sp. Hall 1847
Bivalvia - Cyrtodontida - Cyrtodontidae
Gastropoda - Murchisoniina - Hormotomidae
Gastropoda - Bellerophontida - Bucaniidae
Gastropoda - Bellerophontida - Sinuitidae
Sinuites cancellatus and Sinuites cancellatus angularis
Scyphozoa - Conulariida - Conulariidae
Climacoconus sp. Sinclair 1952
see common names

Geography
Country:Canada State/province:Ontario
Coordinates: 44.6° North, 79.0° West (view map)
Paleocoordinates:14.8° South, 106.8° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Ordovician Epoch: Late Ordovician
10 m.y. bin: Ordovician 4-5
*Period:Middle Ordovician *Epoch:Caradocian
*Local age/stage:Trentonian
Key time interval: Chatfieldian Graptolite zone:  Climacograptus americanus - Orthograptus ruedemanni
Age range of interval: 453.8 - 451 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Simcoe Formation:Verulam Member:Lower
Stratigraphic resolution:member
Stratigraphy comments: M5 - M6
Lithology and environment
Primary lithology:gray argillaceous "limestone"
Secondary lithology:green "shale"
Includes fossils?Y
Includes fossils?Y
Lithology description: "170 feet of grey and brownish grey, fine- and medium-grained, argillaceous and sublithographic limestone; and higher in the formation, 8- to 10-inch beds of grey, medium-crystalline, crinoidal limestone alternating with 2- to 3-foot beds of greenish grey shale. Most of the strata weather to thin, 1- to 2-inch beds and to a buff and rusty colour. The lowermost 10 to 30 feet are non-resistant and consist of an alternation of grey and brownish grey, fine-grained, argillaceous limestone and thin, 1-inch greenish shale partings."
Environment:deep subtidal indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:26267
Authorizer:S. Holland, P. Wagner Enterer:T. Hanson, P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2002-10-10 17:07:54 Last modified:2025-02-22 15:12:02
Access level:the public Released:2002-10-10 17:07:54
Creative Commons license:CC0
Reference information

Primary reference:
7251. B. A. Liberty. 1969. Palaeozoic geology of the Lake Simcoe Area, Ontario. Geological Survey of Canada Memoirs (355)1-201 [S. Holland/T. Hanson/T. Hanson]

Secondary references:

65064 P. Wagner. 2020. Subspecies kluges: a pointless taxonomic database to create species opinions for subspecies that then will be over-ruled and allow subspecies occurrences to be recognized as the subspecies rather than the parent species. [P. Wagner/P. Wagner/P. Wagner]