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 | |
Gastropoda | |
"Trochonema umbilicatum" = Trochonema umbilicata
"Trochonema umbilicatum" = Trochonema umbilicata Hall 1847 snail Trochonema umbilicatum and Trochonema umbilicatum canadense
| |
"Lophospira perangulata" = Lophospira perangulata, "Lophospira perforata" = Lophospira perangulata, Lophospira ventricosa, Lophospira serrulata, "Lophospira saffordi" = Paupospira oweni
"Lophospira perangulata" = Lophospira perangulata Hall 1847 snail
"Lophospira perforata" = Lophospira perangulata Hall 1847 snail
Lophospira ventricosa Hall 1847 snail
Lophospira serrulata Salter 1859 snail
"Lophospira saffordi" = Paupospira oweni Ulrich and Scofield 1897 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
| |
Eotomaria sp. Ulrich and Scofield 1897 snail
Liospira americana Billings 1860 snail
Liospira cf. micula Hall and Whitney 1862 snail
Liospira progne Billings 1860 snail | |
Hormotoma gracilis Hall 1847 snail | |
"Hormotoma salteri" = Cyrtostropha salteri
"Hormotoma salteri" = Cyrtostropha salteri Ulrich and Scofield 1897 snail Hormotoma salteri canadensis
| |
"Hormotoma bellicincta" = Eroicaspira bellicincta
"Hormotoma bellicincta" = Eroicaspira bellicincta Hall 1847 snail | |
"? 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
| |
Raphistomina lapicida Salter 1859 snail
"Holopea nereis" = Haplospira nereis Billings 1865 snail
Holopea paludiniformis Hall 1847 snail | |
Cyclonema gracile Ulrich and Scofield 1897 snail | |
Bivalvia | |
Ctenodonta nitida clam | |
"Ctenodonta scofieldi" = Deceptrix scofieldi
"Ctenodonta scofieldi" = Deceptrix scofieldi Ulrich 1894 clam | |
"Ctenodonta albertina" = Praenucula albertina
"Ctenodonta albertina" = Praenucula albertina Ulrich 1894 clam | |
Modiolopsis sp. Hall 1847 clam | |
Cyrtodonta obesa clam
Cyrtodonta obtusa clam | |
Ambonychia cf. orbicularis Emmons 1842 clam | |
Strophomenata | |
"Sowerbyella cf. curdsvillensis" = Sowerbyella curdsvillensis, "Sowerbyella punctostriata" = Sowerbyella curdsvillensis, "Sowerbyella sericea" = Sowerbyella (Sowerbyella) sericea, Sowerbyella subovalis
"Sowerbyella cf. curdsvillensis" = Sowerbyella curdsvillensis Foerste 1912
"Sowerbyella punctostriata" = Sowerbyella curdsvillensis Foerste 1912
"Sowerbyella sericea" = Sowerbyella (Sowerbyella) sericea Sowerby 1839
Sowerbyella subovalis Wilson 1932 | |
Strophomena incurvata Shephard 1838
Strophomena billingsi Winchell and Schuchert 1893 | |
Rafinesquina cf. esmondensis, Rafinesquina normalis, Rafinesquina normaloides, Rafinesquina praedeltoidea, Rafinesquina salmoni, Rafinesquina deltoidea, Rafinesquina trentonensis, Rafinesquina gibbosa, "Rafinesquina alata" = Rafinesquina alternata alata1
Rafinesquina deltoidea Conrad 1838
Rafinesquina trentonensis Hall 1847
Rafinesquina gibbosa Wilson 1944
"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
| |
Rhynchonellata | |
| |
Glyptorthis cf. bellarugosa Conrad 1843 | |
Hesperorthis tricenaria Conrad 1843 | |
Doleroides sp. Cooper 1930 | |
Paucicrura rogata Sardeson 1892 | |
"Zygospira recurvirostris" = Anazyga recurvirostra, Zygospira deflecta
"Zygospira recurvirostris" = Anazyga recurvirostra Hall 1847
Zygospira deflecta Hall 1847 | |
Lingulata | |
"Lingula obtusa" = Lingulella obtusa, "Lingula cf. trentonensis" = Lingula (Palaeoglossa) trentonensis, "Lingula cf. friabilis" = Palaeoglossa friabilis, "Lingula cf. briseis" = Palaeoglossa briseis
"Lingula obtusa" = Lingulella obtusa Hall 1847
"Lingula cf. trentonensis" = Lingula (Palaeoglossa) trentonensis Conrad 1842
"Lingula cf. friabilis" = Palaeoglossa friabilis Sinclair 1945
"Lingula cf. briseis" = Palaeoglossa briseis Billings 1865 | |
Lingula sp. BruguiƩre 1797 | |
Craniata | |
Dinobolus sp. Hall 1871 | |
"Pholidops trentonensis" = Craniops
"Pholidops trentonensis" = Craniops | |
Stenolaemata | |
Corynotrypa inflata Nicholson 1875 | |
Stictoporella sp. Ulrich 1882 | |
Hallopora multitabulata Ulrich 1886 | |
Trilobita | |
Isotelus cf. maximus Locke 1838 trilobite
Isotelus cf. iowensis Owen 1852 trilobite
Isotelus gigas Dekay 1824 trilobite | |
"Raymondites cf. ingalli" = Bathyurus (Raymondites) ingalli
"Raymondites cf. ingalli" = Bathyurus (Raymondites) ingalli Raymond 1913 trilobite | |
Eobronteus cf. lunatus trilobite | |
"Calliops callicephalus" = Calyptaulax callicephalus
"Calliops callicephalus" = Calyptaulax callicephalus Hall 1847 trilobite | |
Ceraurus pleurexanthemus, "Ceraurus dentatus" = Gabriceraurus dentatus
Ceraurus pleurexanthemus Green 1832 trilobite
"Ceraurus dentatus" = Gabriceraurus dentatus Raymond and Barton 1913 trilobite | |
"Flexicalymene senaria" = Flexicalymene (Flexicalymene) senaria
"Flexicalymene senaria" = Flexicalymene (Flexicalymene) senaria Conrad 1841 trilobite |