Where: Ontario, Canada (44.5° N, 78.7° W: paleocoordinates 25.1° S, 54.8° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Corynoides americanus - Orthograptus ruedemanni graptolite zone, Lower Member (Verulam Formation), Chatfieldian (453.8 - 451.0 Ma)
• M5 - M6
• member-level stratigraphic resolution
Environment/lithology: deep subtidal; gray, argillaceous limestone and green shale
Size class: macrofossils
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 26271: authorized by Steven Holland, entered by Tori Hanson on 10.10.2002, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
Streptelasma sp. Hall 1847 horn coral | |
Scyphozoa | |
Conularia trentonensis jellyfish | |
Strophomenata | |
"Sowerbyella sericea" = Sowerbyella (Sowerbyella) sericea, "Sowerbyella cf. curdsvillensis" = Sowerbyella curdsvillensis, "Sowerbyella punctostriata" = Sowerbyella curdsvillensis, Sowerbyella subovalis
"Sowerbyella sericea" = Sowerbyella (Sowerbyella) sericea Sowerby 1839
"Sowerbyella cf. curdsvillensis" = Sowerbyella curdsvillensis Foerste 1912
"Sowerbyella punctostriata" = Sowerbyella curdsvillensis Foerste 1912
Sowerbyella subovalis Wilson 1932 | |
Rafinesquina cf. esmondensis, Rafinesquina normalis, Rafinesquina normaloides, Rafinesquina praedeltoidea, Rafinesquina salmoni, "Rafinesquina alata" = Rafinesquina alternata alata1, Rafinesquina deltoidea, Rafinesquina gibbosa, Rafinesquina trentonensis
"Rafinesquina alata" = Rafinesquina alternata alata1 Wilson 1944 Rafinesquina alternata alata and Rafinesquina alternata intermedia and Rafinesquina alternata plana and Rafinesquina alternata pota and Rafinesquina alternata transversa
Rafinesquina deltoidea Conrad 1838
Rafinesquina gibbosa Wilson 1944
Rafinesquina trentonensis Hall 1847 | |
Strophomena incurvata Shephard 1838
Strophomena billingsi Winchell and Schuchert 1893 | |
Rhynchonellata | |
Doleroides sp. Cooper 1930 | |
| |
Glyptorthis cf. bellarugosa Conrad 1843 | |
Hesperorthis tricenaria Conrad 1843 | |
Paucicrura rogata Sardeson 1892 | |
"Zygospira recurvirostris" = Anazyga recurvirostra, Zygospira deflecta
"Zygospira recurvirostris" = Anazyga recurvirostra Hall 1847
Zygospira deflecta Hall 1847 | |
Craniata | |
"Pholidops trentonensis" = Craniops
"Pholidops trentonensis" = Craniops | |
Dinobolus sp. Hall 1871 | |
Lingulata | |
"Lingula cf. briseis" = Palaeoglossa briseis, "Lingula cf. trentonensis" = Lingula (Palaeoglossa) trentonensis, "Lingula cf. friabilis" = Palaeoglossa friabilis, "Lingula obtusa" = Lingulella obtusa
"Lingula cf. briseis" = Palaeoglossa briseis Billings 1865
"Lingula cf. trentonensis" = Lingula (Palaeoglossa) trentonensis Conrad 1842
"Lingula cf. friabilis" = Palaeoglossa friabilis Sinclair 1945
"Lingula obtusa" = Lingulella obtusa Hall 1847 | |
Lingula sp. BruguiƩre 1797 | |
Stenolaemata | |
Corynotrypa inflata Nicholson 1875 | |
Hallopora multitabulata Ulrich 1886 | |
Stictoporella sp. Ulrich 1882 | |
Gastropoda | |
"? Tropidodiscus cf. disculus" = Alaskadiscus disculus
"? Tropidodiscus cf. disculus" = Alaskadiscus disculus Billings 1860 snail | |
"Sinuites cancellatus" = Sinuites cancellatus Hall 1847 snail Sinuites cancellatus and Sinuites cancellatus angularis
| |
Cyclonema gracile Ulrich and Scofield 1897 snail | |
Raphistomina lapicida Salter 1859 snail
"Holopea nereis" = Haplospira nereis Billings 1865 snail
Holopea paludiniformis Hall 1847 snail | |
Omospira alexandra, "Hormotoma trentonensis" = Omospira trentonensis
Omospira alexandra Billings 1865 snail
"Hormotoma trentonensis" = Omospira trentonensis Ulrich and Scofield 1897 snail Hormotoma trentonensis crassa and Hormotoma trentonensis plana
| |
Liospira progne Billings 1860 snail
Liospira americana Billings 1860 snail
Liospira cf. micula Hall and Whitney 1862 snail
Eotomaria sp. Ulrich and Scofield 1897 snail | |
"Hormotoma salteri" = Cyrtostropha salteri
"Hormotoma salteri" = Cyrtostropha salteri Ulrich and Scofield 1897 snail Hormotoma salteri canadensis
| |
Hormotoma gracilis Hall 1847 snail | |
"Trochonema umbilicatum" = Trochonema umbilicata
"Trochonema umbilicatum" = Trochonema umbilicata Hall 1847 snail Trochonema umbilicatum and Trochonema umbilicatum canadense
| |
"Lophospira saffordi" = Paupospira oweni, Lophospira ventricosa, "Lophospira perangulata" = Lophospira perangulata, "Lophospira perforata" = Lophospira perangulata, Lophospira serrulata
"Lophospira saffordi" = Paupospira oweni Ulrich and Scofield 1897 snail
Lophospira ventricosa Hall 1847 snail
"Lophospira perangulata" = Lophospira perangulata Hall 1847 snail
"Lophospira perforata" = Lophospira perangulata Hall 1847 snail
Lophospira serrulata Salter 1859 snail | |
"Hormotoma bellicincta" = Eroicaspira bellicincta
"Hormotoma bellicincta" = Eroicaspira bellicincta Hall 1847 snail | |
Bivalvia | |
Modiolopsis sp. Hall 1847 clam | |
Ambonychia cf. orbicularis Emmons 1842 clam | |
Cyrtodonta obesa clam
Cyrtodonta obtusa clam | |
"Ctenodonta albertina" = Praenucula albertina
"Ctenodonta albertina" = Praenucula albertina Ulrich 1894 clam | |
"Ctenodonta scofieldi" = Deceptrix scofieldi
"Ctenodonta scofieldi" = Deceptrix scofieldi Ulrich 1894 clam | |
Ctenodonta nitida clam | |
Trilobita | |
"Ceraurus dentatus" = Gabriceraurus dentatus, Ceraurus pleurexanthemus
"Ceraurus dentatus" = Gabriceraurus dentatus Raymond and Barton 1913 trilobite
Ceraurus pleurexanthemus Green 1832 trilobite | |
"Flexicalymene senaria" = Flexicalymene (Flexicalymene) senaria
"Flexicalymene senaria" = Flexicalymene (Flexicalymene) senaria Conrad 1841 trilobite | |
"Calliops callicephalus" = Calyptaulax callicephalus
"Calliops callicephalus" = Calyptaulax callicephalus Hall 1847 trilobite | |
"Raymondites cf. ingalli" = Bathyurus (Raymondites) ingalli
"Raymondites cf. ingalli" = Bathyurus (Raymondites) ingalli Raymond 1913 trilobite | |
Eobronteus cf. lunatus trilobite | |
Isotelus gigas Dekay 1824 trilobite
Isotelus cf. maximus Locke 1838 trilobite
Isotelus cf. iowensis Owen 1852 trilobite |