Where: Ontario, Canada (44.5° N, 79.0° W: paleocoordinates 24.9° S, 55.0° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Climacograptus spiniferus graptolite zone, Upper Member (Verulam Formation), Chatfieldian (453.8 - 451.0 Ma)
• C1
• member-level stratigraphic resolution
Environment/lithology: deep subtidal; gray limestone and argillaceous limestone
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 26277: 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 corniculum Hall 1847 horn coral | |
Scyphozoa | |
Conularia trentonensis jellyfish | |
Crinoidea | |
Reteocrinus sp. Billings 1859 Sea lily | |
Gastropoda | |
Trochonema fragile Ulrich and Scofield 1897 snail
Trochonema vagrans Ulrich and Scofield 1897 snail
"Trochonema umbilicatum" = Trochonema umbilicata Hall 1847 snail | |
Lophospira perangulata Hall 1847 snail
Lophospira cf. ventricosa Hall 1847 snail
"Lophospira saffordi" = Paupospira oweni Ulrich and Scofield 1897 snail | |
"Hormotoma trentonensis" = Omospira trentonensis
"Hormotoma trentonensis" = Omospira trentonensis Ulrich and Scofield 1897 snail | |
Eotomaria sp. Ulrich and Scofield 1897 snail
Liospira micula Hall and Whitney 1862 snail
Liospira progne Billings 1860 snail | |
Hormotoma gracilis Hall 1847 snail | |
"Hormotoma salteri" = Cyrtostropha salteri
| |
"? Tropidodiscus disculus" = Alaskadiscus disculus
"? Tropidodiscus disculus" = Alaskadiscus disculus Billings 1860 snail | |
"Sinuites cancellatus" = Sinuites cancellatus Hall 1847 snail S. cancellatus and S. cancellatus angularis
| |
Bucania halli Ulrich and Scofield 1897 snail | |
"Helicotoma spinosa" = Linsleyella spinosa
"Helicotoma spinosa" = Linsleyella spinosa Salter 1859 snail | |
Cyclonema gracile Ulrich and Scofield 1897 snail | |
Bivalvia | |
Ctenodonta nasuta Hall 1847 clam
Ctenodonta cf. madisonensis Ulrich 1894 clam
Ctenodonta cf. logani Salter 1859 clam | |
"Cleidophorus sp." = Nuculites
"Cleidophorus sp." = Nuculites Conrad 1841 clam | |
Cuneamya sp. Hall and Whitfield 1875 clam | |
Plethocardia suberecta Ulrich 1894 clam | |
Saffordia cf. ventralis Ulrich 1894 clam | |
Paramodiola sp. Isberg 1934 clam | |
"Whitella compressa" = Cyrtodontula compressa, Matheria rugosa, Vanuxemia abrupta, Vanuxemia dixonensis, Vanuxemia media
"Whitella compressa" = Cyrtodontula compressa Ulrich 1890 clam
Matheria rugosa clam
Vanuxemia abrupta clam
Vanuxemia dixonensis clam
Vanuxemia media clam | |
"Ambonychia amygdalina" = Ambonychinia amygdalina
"Ambonychia amygdalina" = Ambonychinia amygdalina Hall 1847 clam | |
Strophomenata | |
Vellamo trentonensis Raymond 1921 | |
Sowerbyella cf. curdsvillensis, "Sowerbyella sericea" = Sowerbyella (Sowerbyella) sericea, Sowerbyella subovalis
Sowerbyella cf. curdsvillensis Foerste 1912
"Sowerbyella sericea" = Sowerbyella (Sowerbyella) sericea Sowerby 1839
Sowerbyella subovalis Wilson 1932 | |
Opikina cf. sinclairi, Opikina cf. wagneri, Opikina rugosa, Opikina cf. septata, Opikina platys, Strophomena cf. dignata
Opikina platys Wilson 1944
Strophomena cf. dignata Fenton 1928 | |
Rafinesquina normaloides, Rafinesquina praedeltoidea, Rafinesquina trentonensis, "Rafinesquina alata" = Rafinesquina alternata alata2
Rafinesquina trentonensis Hall 1847
"Rafinesquina alata" = Rafinesquina alternata alata2 Wilson 1944 R. alternata alata and R. alternata intermedia and R. alternata plana and R. alternata platys
| |
Rhynchonellata | |
Parastrophina hemiplicata Hall 1847 | |
"Valcourea cf. deflecta" = Campylorthis deflecta, "Dinorthis cf. iphigenia" = Plaesiomys iphigenia, Dinorthis cf. calderi, Dinorthis cf. ottawaensis, Dinorthis pectinella
"Valcourea cf. deflecta" = Campylorthis deflecta Conrad 1843
"Dinorthis cf. iphigenia" = Plaesiomys iphigenia Billings 1865 D. cf. iphigenia and D. iphigenia media
| |
"Resserella whittakeri" = Dalmanella whittakeri, Paucicrura rogata
"Resserella whittakeri" = Dalmanella whittakeri Ruedemann 1921
Paucicrura rogata Sardeson 1892 | |
"Zygospira recurvirostris" = Anazyga recurvirostra
"Zygospira recurvirostris" = Anazyga recurvirostra Hall 1847 | |
Rhynchotrema increbescens Hall 1847 | |
Stenolaemata | |
Trilobita | |
"Illaenus americanus" = Thaleops laurentiana
"Illaenus americanus" = Thaleops laurentiana Amati and Westrop 2004 trilobite | |
Achatella achates Billings 1860 trilobite | |
"Flexicalymene senaria" = Flexicalymene (Flexicalymene) senaria
"Flexicalymene senaria" = Flexicalymene (Flexicalymene) senaria Conrad 1841 trilobite |