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
| Morania fragmenta | |
|
Morania fragmenta Walcott 1919 | |
| Marpolia spissa | |
|
Marpolia spissa Walcott 1919 | |
| unclassified | |
|
Arthropoda "indet. A" Latreille 1829
Arthropoda "indet. B" Latreille 1829 | |
| Habelia | |
| Crustacea | |
|
? Canadaspis sp. Novozhilov in Orlov 1960 | |
| Artiopoda | |
Ptychagnostus sp., "Lejopyge calva" = Lejopyge laevigatus
Ptychagnostus sp. Jaekel 1909
"Lejopyge calva" = Lejopyge laevigatus Dalman 1828 | |
|
Hypagnostus parvifrons Linnarsson 1869 | |
| Trilobita | |
|
Marjumia typa Walcott 1908 trilobite | |
|
Ptychopariida indet. Swinnerton 1915 trilobite | |
|
Brachyaspidion sp. Miller 1936 trilobite
Brachyaspidion cf. sulcata trilobite | |
|
Modocia sp. Walcott 1924 trilobite
Modocia brevispina trilobite | |
|
Elrathia alapyge trilobite | |
Athabaskiella sp., Bathyuriscus cf. elegans, Bathyuriscus fimbriatus, Hemirhodon amplipyge, Hemirhodon convexifrons
Athabaskiella sp. Kobayashi 1942 trilobite
Bathyuriscus cf. elegans trilobite
Bathyuriscus fimbriatus Robison 1964 trilobite
Hemirhodon amplipyge trilobite
Hemirhodon convexifrons trilobite | |
|
? Corynexochus sp. Angelin 1854 trilobite | |
|
Olenoides decorus trilobite | |
| Artiopoda | |
|
Naraoia aff. compacta Walcott 1912 | |
|
? Ottoia sp. Walcott 1911 | |
| Lingulata | |
|
Lingulella sp. Salter 1866 | |
|
Acrotretida indet. Kuhn 1949 | |
| Hyolitha | |
|
Haplophrentis sp. Babcock and Robison 1988 | |
| Polychaeta | |
|
Polychaeta indet. Grube 1850 | |
|
? Eldonia sp. Walcott 1911 | |
| Graptolithina | |
|
Graptolithina indet. graptolite | |
| Hexactinellida | |
|
Protospongia sp. Salter 1864 glass sponge | |
| Demospongiae | |
|
Vauxia sp. Walcott 1920 demosponge | |
|
Leptomitus lineatus Walcott 1920 demosponge | |
|
Crumillospongia frondosa Walcott 1919 demosponge | |
|
Hamptonia bowerbanki Walcott 1920 demosponge | |
| Tubulella | |
| Bryopsidophyceae | |
|
Margaretia sp. Walcott 1931 | |
| Vendotaenia | |
|
Vendotaenia sp. Gnilovskaya 1971 | |
|
Planolites sp. Nicholson 1873 | |