Where: Ontario, Canada (44.5° N, 78.6° W: paleocoordinates 25.1° S, 54.7° W)
• coordinate estimated from map
• local area-level geographic resolution
When: Plectodina tenuis conodont zone, Hull Member (Bobcaygeon Formation), Chatfieldian (453.8 - 451.0 Ma)
• Now considered Hull Limestone member of Bobcaygeon.
• member-level stratigraphic resolution
Environment/lithology: gray limestone and brown limestone
Size classes: macrofossils, microfossils
Collection methods: chemical,
Primary reference: 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]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 26263: authorized by Steven Holland, entered by Tori Hanson on 10.10.2002, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Chlorophyceae | |
Receptaculites sp. Defrance 1827 | |
Cephalopoda | |
Endoceras proteiforme Hall 1847 | |
Bivalvia | |
| |
Ambonychia sp. Hall 1847 clam | |
Cyrtodonta obtusa clam | |
Gastropoda | |
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Cyclonema cf. cushingi Ruedemann 1912 snail | |
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Raphistomina distincta Wilson 1921 snail
Raphistomina lapicida Salter 1859 snail
Raphistomina aperta Salter 1859 snail | |
Salpingostoma cf. billingsi Wilson 1951 snail
Phragmolites compressus Conrad 1838 snail | |
"? Tropidodiscus disculus" = Alaskadiscus disculus
"? Tropidodiscus disculus" = Alaskadiscus disculus Billings 1860 snail | |
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Straparollina cf. asperostriata Billings 1860 snail | |
"Hormotoma trentonensis" = Omospira trentonensis
"Hormotoma trentonensis" = Omospira trentonensis Ulrich and Scofield 1897 snail | |
"Hormotoma salteri" = Cyrtostropha salteri
"Hormotoma salteri" = Cyrtostropha salteri Ulrich and Scofield 1897 snail Hormotoma salteri canadensis
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Hormotoma gracilis Hall 1847 snail
Hormotoma simplex Wilson 1932 snail | |
"Eotomaria larvata" = Paraliospira larvata, Liospira cf. progne
"Eotomaria larvata" = Paraliospira larvata Salter 1859 snail
Liospira cf. progne Billings 1860 snail | |
Subulites regularis Ulrich and Scofield 1897 snail
Subulites conradi Ulrich and Scofield 1897 snail | |
Strophomenata | |
"? Microtrypa cf. plana" = Trigrammaria
"? Microtrypa cf. plana" = Trigrammaria | |
Rafinesquina sp., Rafinesquina carlottina, Rafinesquina cf. deerensis, Rafinesquina okulitchi, Rafinesquina cf. patula, Rafinesquina cf. praecursor, "Rafinesquina alata" = Rafinesquina alternata alata1, Rafinesquina trentonensis
Rafinesquina sp. Hall and Clarke 1892
Rafinesquina cf. praecursor Raymond 1921
"Rafinesquina alata" = Rafinesquina alternata alata1 Wilson 1944 Rafinesquina alternata alata, Rafinesquina alternata intermedia, Rafinesquina alternata plana, Rafinesquina alternata platys, Rafinesquina alternata semiquadrata
Rafinesquina trentonensis Hall 1847 | |
Strophomena cf. filitexta, Strophomena magna, Strophomena extensa, Strophomena dignata, Opikina ampla, Opikina gloucesterensis, Opikina ovalis, Opikina wagneri, Opikina platys, Opikina rugosa
Strophomena magna Wilson 1945
Strophomena extensa Wilson 1932
Strophomena dignata Fenton 1928
Opikina platys Wilson 1944
Opikina rugosa Wilson 1921 | |
"Sowerbyella sericea" = Sowerbyella (Sowerbyella) sericea, "Sowerbyella curdsvillensis" = Sowerbyella curdsvillensis, "Sowerbyella punctostriata" = Sowerbyella curdsvillensis, Sowerbyella subovalis
"Sowerbyella sericea" = Sowerbyella (Sowerbyella) sericea Sowerby 1839
"Sowerbyella curdsvillensis" = Sowerbyella curdsvillensis Foerste 1912
"Sowerbyella punctostriata" = Sowerbyella curdsvillensis Foerste 1912
Sowerbyella subovalis Wilson 1932 | |
Rhynchonellata | |
"Zygospira recurvirostris" = Anazyga recurvirostra, Zygospira deflecta
"Zygospira recurvirostris" = Anazyga recurvirostra Hall 1847
Zygospira deflecta Hall 1847 | |
Plectorthis cf. plicatella Hall 1847 Plectorthis cf. plicatella and Plectorthis plicatella trentonensis
| |
Platystrophia trentonensis McEwan 1919 | |
Hesperorthis tricenaria Conrad 1843 | |
"Dinorthis iphigenia" = Plaesiomys iphigenia Billings 1865 | |
"Resserella whittakeri" = Dalmanella whittakeri Ruedemann 1921
Paucicrura rogata Sardeson 1892 | |
Lingulata | |
Pseudolingula cf. eva Billings 1861 | |
"Lingula briseis" = Palaeoglossa briseis
"Lingula briseis" = Palaeoglossa briseis Billings 1865 | |
Stenolaemata | |
Nicholsonella sp. Ulrich 1890 | |
Hallopora multitabulata Ulrich 1886 | |
Batostoma winchelli Ulrich 1893 | |
Stictoporella cribrosa Ulrich 1886 | |
Escharopora subrecta Ulrich 1886 | |
Favositella sp. Etheridge and Foord 1884 | |
Trilobita | |
Bumastus sp. Murchison 1839 trilobite
Bumastoides milleri Billings 1859 trilobite
"Illaenus cf. conradi" = Thaleops conradi Billings 1859 trilobite | |
Isotelus iowensis Owen 1852 trilobite
Isotelus gigas Dekay 1824 trilobite | |
Pterygometopus sp. Schmidt 1881 trilobite
Chasmops sp. M'Coy 1849 trilobite
Chasmops bebryx trilobite | |
"Flexicalymene senaria" = Flexicalymene (Flexicalymene) senaria
"Flexicalymene senaria" = Flexicalymene (Flexicalymene) senaria Conrad 1841 trilobite | |
Ceraurus pleurexanthemus, "Ceraurus dentatus" = Gabriceraurus dentatus
Ceraurus pleurexanthemus Green 1832 trilobite
"Ceraurus dentatus" = Gabriceraurus dentatus Raymond and Barton 1913 trilobite | |
"Encrinurus trentonensis" = Erratencrinurus vigilans, Encrinurus cybeleformis
"Encrinurus trentonensis" = Erratencrinurus vigilans Hall 1847 trilobite
Encrinurus cybeleformis trilobite | |
Bathyurus acutus, Bathyurus extans, "Raymondites cf. spiniger" = Bathyurus (Raymondites) spiniger, "Raymondites ingalli" = Bathyurus (Raymondites) ingalli
Bathyurus acutus Raymond 1913 trilobite
Bathyurus extans Hall 1847 trilobite
"Raymondites cf. spiniger" = Bathyurus (Raymondites) spiniger Hall 1847 trilobite
"Raymondites ingalli" = Bathyurus (Raymondites) ingalli Raymond 1913 trilobite Raymondites ingalli and Raymondites cf. ingalli
| |
Proetus sp. Steininger 1831 trilobite | |
Ostracoda | |
Eoleperditia fabulites ostracod
Leperditia sp. Rouault 1851 ostracod
Leperditia trentonensis ostracod | |
Edrioasteroidea | |
Edrioaster bigsbyi Billings 1858 | |
Cyclocystoidea | |
Cyclocystoides halli Billings 1858 | |
Pleurocystites squamosus Billings 1874 | |
Glyptocystites grandis Sinclair 1945 | |
Crinoidea | |
Lichenocrinus sp. Hall 1866 Sea lily | |
Cremacrinus rugosus Sea lily | |
Hybocystites sp. Wetherby 1880 Sea lily | |
Ottawacrinus sp. Billings 1887 Sea lily
Ottawacrinus typus Sea lily | |
Cupulocrinus jewetti Sea lily
Cupulocrinus humilis Billings 1857 Sea lily | |
Cleiocrinus sp. Billings 1857 Sea lily | |
Glyptocrinus sp. Hall 1847 Sea lily | |
Scyphozoa | |
Conularia trentonensis jellyfish | |
Anthozoa | |
Streptelasma corniculum Hall 1847 horn coral | |
Lambeophyllum profundum Conrad 1843 horn coral |