BA -320 [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 50 mm thick bed, 320 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 84435: 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
  -
Morania
  -
Morania sp. Walcott 1919
Marpolia spissa
  -
Marpolia spissa Walcott 1919
 Gephyrea - Pikaidae
Pikaia gracilens Walcott 1911
Oesia sp. Walcott 1911
Coeloscleritophora
 Chancelloriida - Chancelloriidae
Chancelloria eros Walcott 1920
unclassified
  -
Demospongiae
 Protomonaxonida - Takakkawiidae
Takakkawia lineata Walcott 1920 demosponge
 Protomonaxonida - Hazeliidae
Hazelia sp. Walcott 1920 demosponge
Heteractinida
 Octactinellida - Eiffeliidae
Petaloptyon danei Raymond 1931
Hyolitha
 Hyolithida - Hyolithidae
Rhynchonellata
 Orthida - Bohemiellidae
Kutorginata
 Kutorginida - Nisusiidae
Lingulata
 Lingulida - Obolidae
Paterinata
 Paterinida - Paterinidae
Burgessochaeta
  -
Odontogriphus
  -
Odontogriphus omalus Conway-Morris 1976
Tergomya
 Scenelloidea - Scenellidae
Scenella amii Matthew 1902
 Sachitida -
Wiwaxia corrugata Matthew 1899
 Bradoriida - Svealutidae
 Radiodonta -
 Radiodonta - Hurdiidae
Hurdia sp. Walcott 1912
Deuteropoda
 Hymenocarina - Perspicarididae
Crustacea
 Waptiida - Waptiidae
Waptia fieldensis Walcott 1912
 Canadaspidida - Canadaspididae
Canadaspis perfecta Walcott 1912
Megacheira
 Yohoiida - Yohoiidae
Artiopoda
 Vicissicaudata -
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
 Ptychopariida - Alokistocaridae
Elrathia permulta Walcott 1918 trilobite
Artiopoda
 Nektaspidida - Naraoiidae
Naraoia compacta Walcott 1912
 Agnostida - Peronopsidae
"Ptychagnostus praecurrens" = Pentagnostus praecurrens
"Ptychagnostus praecurrens" = Pentagnostus praecurrens WestergÄrd 1936
Molaria
  -
Burgessia
  -
 Odaraiida - Pectocariidae
"Odaraia alata" = Pectocaris
"Odaraia alata" = Pectocaris
 Archaeopriapulida - Selkirkiidae
Selkirkia "sp. A" Walcott 1911
Selkirkia columbia Conway Morris 1977
 Archaeopriapulida - Miskoidae
Louisella pedunculata Conway Morris 1977
 Archaeopriapulida - Ottoidae
Ottoia prolifica Walcott 1911
Algae
 Algae -
Algae "indet. A"
Listed as "Alga A"
Pollingeria grandis
  - Wiwaxidae
Pollingeria grandis Walcott 1911
Marrellomorpha
 Marrellida -