Where: British Columbia, Canada (50.6° N, 115.6° W: paleocoordinates 3.8° S, 80.3° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Bolaspidella trilobite zone, Duchesnay Formation, St Davids (509.0 - 497.0 Ma)
• informal Duchesnay unit
• group of beds-level stratigraphic resolution
Environment/lithology: deep-water; lithified shale
Size class: macrofossils
Preservation: cast, mold/impression
Primary reference: K. J. Johnston, P. A. Johnston, and W. G. Powell. 2009. A new, Middle Cambrian, Burgess Shale-type biota, Bolaspidella zone, Chancellor Basin, southeastern British Columbia. Palaeogeography, Palaeoclimatology, Palaeoecology 277:106-126 [W. Kiessling/U. Merkel/U. Merkel]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 122072: authorized by Wolfgang Kiessling, entered by Uta Merkel on 15.12.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Marpolia spissa | |
Marpolia spissa Walcott 1919 | |
Morania fragmenta | |
Morania fragmenta Walcott 1919 | |
Vendotaenia | |
Vendotaenia sp. Gnilovskaya 1971 | |
Bryopsidophyceae | |
Margaretia sp. Walcott 1931 | |
Graptolithina | |
Graptolithina indet. graptolite | |
? Eldonia sp. Walcott 1911 | |
Polychaeta | |
Polychaeta indet. Grube 1850 | |
Lingulata | |
Lingulella sp. Salter 1866 | |
Acrotretida indet. Kuhn 1949 | |
Hyolitha | |
Haplophrentis sp. Babcock and Robison 1988 | |
unclassified | |
Arthropoda "indet. A" Latreille 1829
Arthropoda "indet. B" Latreille 1829 | |
Trilobita | |
Hemirhodon amplipyge, Hemirhodon convexifrons, Bathyuriscus cf. elegans, Bathyuriscus fimbriatus, Athabaskiella sp.
Hemirhodon amplipyge trilobite
Hemirhodon convexifrons trilobite
Bathyuriscus cf. elegans trilobite
Bathyuriscus fimbriatus Robison 1964 trilobite
Athabaskiella sp. Kobayashi 1942 trilobite | |
? Corynexochus sp. Angelin 1854 trilobite | |
Olenoides decorus trilobite | |
Marjumia typa Walcott 1908 trilobite | |
Ptychopariida indet. Swinnerton 1915 trilobite | |
Elrathia alapyge trilobite | |
Modocia sp. Walcott 1924 trilobite
Modocia brevispina trilobite | |
Brachyaspidion sp. Miller 1936 trilobite
Brachyaspidion cf. sulcata trilobite | |
Artiopoda | |
Ptychagnostus sp., "Lejopyge calva" = Lejopyge laevigatus
Ptychagnostus sp. Jaekel 1909
"Lejopyge calva" = Lejopyge laevigatus Dalman 1828 | |
Hypagnostus parvifrons Linnarsson 1869 | |
Naraoia aff. compacta Walcott 1912 | |
Crustacea | |
? Canadaspis sp. Novozhilov in Orlov 1960 | |
Habelia | |
? Ottoia sp. Walcott 1911 | |
Tubulella | |
Hexactinellida | |
Protospongia sp. Salter 1864 glass sponge | |
Demospongiae | |
Vauxia sp. Walcott 1920 demosponge | |
Crumillospongia frondosa Walcott 1919 demosponge | |
Leptomitus lineatus Walcott 1920 demosponge | |
Hamptonia bowerbanki Walcott 1920 demosponge | |
Planolites sp. Nicholson 1873 |