Craigleith vicinity, Georgian Bay area, Lake Simcoe area: Edenian - Maysvillian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Scyphozoa
- Conulariida
- Conulariidae
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Conularia trentonensis
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Anthozoa
- Stauriida
- Streptelasmatidae
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Streptelasma corniculum
Hall 1847
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Pterobranchia
- Dendroidea
- Dendrograptidae
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Desmograptus cancellatus
(Hopkinson 1875)
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Pterobranchia
- Graptoloidea
- Mastigograptidae
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Mastigograptus sp.
Ruedemann 1908
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Rhombifera
- Cheirocrinidae
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Cheirocrinus granulosus
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Cheirocrinus logani
(Billings 1857)
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Crinoidea
- Homocrinida
- Homocrinidae
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cf. Ectenocrinus sp.
Miller 1889
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Crinoidea
- Dendrocrinida
- Dendrocrinidae
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cf. Dendrocrinus alternatus
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Crinoidea
- Monobathrida
- Glyptocrinidae
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cf. Schizocrinus nodosus
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Stenolaemata
- Cystoporata
- Ceramoporidae
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Coeloclema trentonensis
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Stenolaemata
- Cryptostomata
- Arthrostylidae
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Nematopora cf. ovalis
Ulrich 1890
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Stenolaemata
- Cryptostomata
- Rhinidictyidae
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Rhinidictya neglecta
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| R. negclecta canadensis | ||||||||||
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Stenolaemata
- Trepostomata
- Halloporidae
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Diplotrypa neglects
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Stenolaemata
- Trepostomata
- Trematoporidae
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Batostoma evansi
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Batostoma cf. humila
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Stenolaemata
- Trepostomida
- Amplexoporidae
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Monotrypa undulata
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Stenolaemata
- Trepostomida
- Monticuliporidae
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Mesotrypa prolifica
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Prasopora patera
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Rhynchonellata
- Atrypida
- Anazygidae
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Catazyga headi
(Billings 1862)
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| C. headi filistriata | ||||||||||
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Zygospira recurvirostris
(Hall 1847)
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| recombined as Anazyga recurvirostra | ||||||||||
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Rhynchonellata
- Atrypida
- Cyclospiridae
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Cyclospira bisulcata
(Emmons 1842)
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Rhynchonellata
- Orthida
- Dalmanellidae
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Paucicrura rogata
(Sardeson 1892)
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Rhynchonellata
- Orthida
- Heterorthidae
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"Dalmanella" emacerata
(Hall 1860)
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| recombined as Heterorthina emacerata | ||||||||||
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Rhynchonellata
- Orthida
- Platystrophiidae
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Platystrophia extensa
McEwan 1920
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Platystrophia cf. trentonensis
McEwan 1919
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Platystrophia elegantula
McEwan 1919
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Platystrophia amoena
McEwan 1919
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Rhynchonellata
- Orthida
- Plectorthidae
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Hebertella occidentalis
(Hall 1847)
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Rhynchonellata
- Orthida
- Plaesiomyidae
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Dinorthis sp.
Hall and Clarke 1892
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Dinorthis meedsi
(Winchell and Schuchert 1892)
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Dinorthis iphigenia
(Billings 1865)
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| recombined as Plaesiomys iphigenia | ||||||||||
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Rhynchonellata
- Orthida
- Glyptorthidae
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Glyptorthis bellarugosa
(Conrad 1843)
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Rhynchonellata
- Orthida
- Hesperorthidae
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Hesperorthis tricenaria
(Conrad 1843)
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Rhynchonellata
- Pentamerida
- Parastrophinidae
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Parastrophina hemiplicata
(Hall 1847)
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Rhynchonellata
- Rhynchonellida
- Rhynchotrematidae
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Rhynchotrema intermedia
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Rhynchotrema increbescens
(Hall 1847)
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Strophomenata
- Strophomenida
- Sowerbyellidae
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Sowerbyella subovalis
Wilson 1932
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Sowerbyella sericea
(Sowerby 1839)
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| recombined as Sowerbyella (Sowerbyella) sericea | ||||||||||
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Sowerbyella curdsvillensis
(Foerste 1912)
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Sowerbyella minnesotensis
(Sardeson 1892)
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena incurvata
(Shephard 1838)
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Strophomena billingsi
Winchell and Schuchert 1893
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina robusta
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Rafinesquina cf. sardesoni
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Rafinesquina deltoidea
(Conrad 1838)
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Rafinesquina nasuta
(Emmons 1842)
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Strophomenata
- Orthotetida
- Triplesiidae
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Triplesia cf. extans
(Emmons 1842)
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Lingulata
- Lingulida
- Discinidae
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Orbiculoidea lamellosa
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Lingulata
- Lingulida
- Lingulidae
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Lingula rotunda
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Lingulata
- Lingulida
- Lingulasmatidae
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Lingula cobourgensis
Billings 1865
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| recombined as Lingulasma cobourgensis | ||||||||||
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Bivalvia
- Cyrtodontida
- Cyrtodontidae
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Whitella ventricosa
(Hall 1847)
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| recombined as Cyrtodontula ventricosa | ||||||||||
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Bivalvia
- Myalinida
- Ambonychiidae
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Ambonychia sp.
Hall 1847
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Bivalvia
- Solemyida
- Ctenodontidae
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Ctenodonta alta
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Cephalopoda
- Ascocerida
- Probillingsitidae
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Probillingsites primus
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Cephalopoda
- Oncocerida
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"Cyrtoceras" sp.
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Cephalopoda
- Oncocerida
- Oncoceratidae
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Beloitoceras parksi
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Cephalopoda
- Tarphycerida
- Trocholitidae
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Trocholites ammonius
Conrad 1838
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Cephalopoda
- Pseudorthocerida
- Spyroceratidae
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"Spyroceras" bilineatum
(Hall 1847)
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Cephalopoda
- Orthocerida
- Proteoceratidae
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Ephippiorthoceras sigmoidale
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Cephalopoda
- Orthocerida
- Sactoceratidae
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Sactoceras typicale
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Cephalopoda
- Dissidocerida
- Geisonoceratidae
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Geisonoceras amplicameratum
(Hall 1847)
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| recombined as Ordogeisonoceras amplicameratum | ||||||||||
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Cephalopoda
- Endocerida
- Endoceratidae
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Endoceras proteiforme
Hall 1847
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Cameroceras trentonensis
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Gastropoda
- Bellerophontida
- Sinuitidae
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Sinuites cancellatus
(Hall 1847)
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Gastropoda
- Bellerophontida
- Bucaniidae
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Salpingostoma expansum
(Hall 1847)
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| recombined as Salpingostoma expansa | ||||||||||
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Gastropoda
- Murchisoniina
- Loxonematidae
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Hormotoma trentonensis
Ulrich and Scofield 1897
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| recombined as Omospira trentonensis | ||||||||||
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Gastropoda
- Murchisoniina
- Eotomariidae
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Clathrospira subconica
(Hall 1847)
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Liospira vitruvia
(Billings 1865)
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Liospira micula
(Hall and Whitney 1862)
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Liospira americana
(Billings 1860)
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Gastropoda
- Murchisoniina
- Subulitidae
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Subulites elongatus
(Portlock 1843)
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Fusispira ventricosa
Hall 1872
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Fusispira subfusiformis
(Hall 1847)
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Fusispira cf. angustata
(Ulrich and Scofield 1897)
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| original and current combination Fusispira angusta | ||||||||||
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Fusispira nobilis
Ulrich and Scofield 1897
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Hormotoma bellicincta
(Hall 1847)
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| recombined as Eroicaspira bellicincta | ||||||||||
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Gastropoda
- Murchisoniina
- Lophospiridae
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Lophospira elevata
Ulrich and Scofield 1897
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| recombined as Paupospira elevata | ||||||||||
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Lophospira medialis
Ulrich and Scofield 1897
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= Paupospira burginensis
Ulrich and Scofield 1897
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Wagner 2023 | |||||||||
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Lophospira milleri
(Miller 1877)
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Gastropoda
- Murchisoniina
- Trochonematidae
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Trochonema umbilicatum
(Hall 1847)
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| recombined as Trochonema umbilicata | ||||||||||
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Gastropoda
- Murchisoniina
- Murchisoniidae
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Hormotoma cf. salteri
Ulrich and Scofield 1897
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| recombined as Cyrtostropha salteri | ||||||||||
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Gastropoda
- Murchisoniina
- Hormotomidae
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Hormotoma cf. gracilis
(Hall 1847)
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Hormotoma simplex
Wilson 1932
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Trilobita
- Asaphida
- Asaphidae
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Pseudogygites canadensis
(Chapman 1856)
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| synonym of Pseudogygites latimarginatus | ||||||||||
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Isotelus cf. maximus
Locke 1838
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Isotelus gigas
(Dekay 1824)
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| recombined as Asaphus gigas | ||||||||||
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Trilobita
- Lichida
- Lichidae
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Acrolichas sp.
Foerste 1919
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| synonym of Amphilichas | ||||||||||
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Trilobita
- Corynexochida
- Illaenidae
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Illaenus americanus
Billings 1859
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| replaced by Thaleops laurentiana | ||||||||||
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Trilobita
- Phacopida
- Calymenidae
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Flexicalymene senaria
(Conrad 1841)
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| recombined as Flexicalymene (Flexicalymene) senaria | ||||||||||
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Flexicalymene meeki
(Foerste 1910)
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Trilobita
- Phacopida
- Cheiruridae
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Ceraurus dentatus
Raymond and Barton 1913
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| recombined as Gabriceraurus dentatus | ||||||||||
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Ceraurus pleurexanthemus
Green 1832
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Ceraurinus confluens
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Ceraurinus marginatus
Barton 1913
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| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Ontario |
| Coordinates: | 45.5° North, 81.0° West (view map) | ||
| Paleocoordinates: | 23.3° South, 55.6° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| Stage: | Katian | 10 m.y. bin: | Ordovician 5 |
| *Period: | Middle Ordovician | *Epoch: | Caradocian | *Local age/stage: | Late/Upper Trentonian |
| Key time interval: | Edenian - Maysvillian | Conodont zone: | Belodina confluens |
| Age range of interval: | 451.10000 - 449.80000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Simcoe | Formation: | Lindsay | Member: | Lower |
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: Formerly thought to be Trentonian, but now considered Edenian - Maysvillian (PJW 2017-04-18). Lindsay overlies Verulam Formation. Liberty (the author) separated the Collingwood from the Liberty (the formation), so this is the lower member. | |||||
Lithology and environment
| Primary lithology: | gray argillaceous "limestone" |
| Secondary lithology: | "shale" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: "The formation consists generally of grey to greenish grey, fine-grained, argillaceous limestone in beds from an inch to 2 feet thick. It also includes shale partings, as much as 2 inches thick, along most bedding planes. Interbedded are a few beds 8 to 12 inches thick, of medium-crystalline, crinoidal limestone and calcarenite, the latter commonly enclosing leses of fine to coarse conglomerate and breccia." | |
| Environment: | deep subtidal indet. |
| Geology comments: Possible shallow-water sedimentation. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: Fossils collected by Dr. J. F. Caley and/or the writer, identified by officers of the Geological Survey of Canada. | |
Metadata
| Database number: | 26293 | ||
| Authorizer: | S. Holland, P. Wagner | Enterer: | T. Hanson, P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2002-10-11 11:25:49 | Last modified: | 2018-03-28 23:29:11 |
| Access level: | the public | Released: | 2002-10-11 11:25:49 |
| Creative Commons license: | CC BY |
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:
| 9042 | P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner] |