BA -310 [Great Phyllopod Bed, Walcott Quarry Mbr, Burgess Shale Fm] (Cambrian of Canada)

Where: British Columbia, Canada (51.4° N, 116.5° W: paleocoordinates 3.7° S, 80.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Walcott Quarry Member (Burgess Shale Formation), Delamaran (511.2 - 506.5 Ma)

• STRATIGRAPHIC RELATIONS: From the Great Phyllopod Bed of the Walcott Quarry Member, Burgess Shale Fm, Chancellor Gp, which overlies the Wash Limestone Mbr, and is overlain by the Raymond Quarry Shale Mbr. AGE: early Middle Cambrian, Delamaran North American stage. STRATIGRAPHIC POSITION: From 40 mm thick bed, 310 cm below "lower ginger layer, representing the base of the "Phyllopod Bed".

• bed-level stratigraphic resolution

Environment/lithology: deep-water; lithified, calcareous siltstone and lithified, cherty/siliceous mudstone

• ENVIRONMENT: Deep-water depositional environment.
• SPECIFIC LITHOLOGY: Cm-scale interbedded siliceous mudstone and calcisiltites. LITHIFICATION: Lithified.

Size class: macrofossils

Preservation: cast, mold/impression, adpression, soft parts

Reposited in the ROM

Collection methods: quarrying,

• COLLECTOR: Royal Ontario Museum staff. REPOSTORY: Royal Ontario Museum (ROM).

Primary reference: J.-B. Caron and D. A. Jackson. 2008. Paleoecology of the Greater Phyllopod Bed community, Burgess Shale. Palaeogeography, Palaeoclimatology, Palaeoecology 258:222-256 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 84434: authorized by Austin Hendy, entered by Austin Hendy on 18.10.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for all taxa. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
unclassified
  -
Brachiopoda
  -
Lingulata
 Lingulida - Obolidae
 Acrotretida -
Paterinata
 Paterinida - Paterinidae
Rhynchonellata
 Orthida - Bohemiellidae
Kutorginata
 Kutorginida - Nisusiidae
Hyolitha
 Hyolithida - Hyolithidae
Tergomya
 Scenelloidea - Scenellidae
Scenella amii Matthew 1902
 Sachitida -
Wiwaxia corrugata Matthew 1899
 Archaeopriapulida - Ottoidae
Ottoia prolifica Walcott 1911
 Archaeopriapulida - Selkirkiidae
Selkirkia columbia Conway Morris 1977
unclassified
  -
Arthropoda "indet. G" Latreille 1829
Plenocaris
  -
 Odaraiida - Pectocariidae
"Odaraia alata" = Pectocaris
"Odaraia alata" = Pectocaris
 Bradoriida - Svealutidae
Crustacea
 Waptiida - Waptiidae
Waptia fieldensis Walcott 1912
 Canadaspidida - Canadaspididae
Canadaspis perfecta Walcott 1912
Megacheira
 Yohoiida - Yohoiidae
 Radiodonta -
 Radiodonta - Hurdiidae
Hurdia sp. Walcott 1912
Artiopoda
 Nektaspidida - Naraoiidae
Naraoia compacta Walcott 1912
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
 Ptychopariida - Alokistocaridae
Elrathia permulta Walcott 1918 trilobite
Artiopoda
 Agnostida - Peronopsidae
"Ptychagnostus praecurrens" = Pentagnostus praecurrens
"Ptychagnostus praecurrens" = Pentagnostus praecurrens WestergÄrd 1936
 Vicissicaudata -
Burgessia
  -
Habelia
  -
 Hallucishaniids -
Hallucigenia sp. Conway Morris 1977
 Gephyrea - Pikaidae
Oesia sp. Walcott 1911
Cambrorhytium major
  -
Cambrorhytium major Walcott 1908
Cambrorhytium fragilis
  -
Demospongiae
 Protomonaxonida - Takakkawiidae
Takakkawia lineata Walcott 1920 demosponge
 Protomonaxonida - Hazeliidae
Hazelia sp. Walcott 1920 demosponge
Coeloscleritophora
 Chancelloriida - Chancelloriidae
Chancelloria eros Walcott 1920
Algae
 Algae -
  -
Dictyophycus gracilis Ruedemann 1931
Morania
  -
Morania sp. Walcott 1919
Marpolia spissa
  -
Marpolia spissa Walcott 1919
Marrellomorpha
 Marrellida -
Pollingeria grandis
  - Wiwaxidae
Pollingeria grandis Walcott 1911
Canadia spinosa
  - Canadidae
Canadia spinosa Walcott 1911