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 (513.0 - 505.0 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.
Morania
  -
Morania sp. Walcott 1919
Marpolia spissa
  -
Marpolia spissa Walcott 1919
unclassified
  -
Algae
 Algae -
Algae "indet. A"
Listed as "Alga A"
 Gephyrea - Pikaidae
Pikaia gracilens Walcott 1911
Oesia sp. Walcott 1911
unclassified
  -
Heteractinida
 Octactinellida - Eiffeliidae
Petaloptyon danei Raymond 1931
Demospongiae
 Protomonaxonida - Hazeliidae
Hazelia sp. Walcott 1920 demosponge
 Protomonaxonida - Takakkawiidae
Takakkawia lineata Walcott 1920 demosponge
Coeloscleritophora
 Chancelloriida - Chancelloriidae
Chancelloria eros Walcott 1920
Tergomya
 Scenelloidea - Scenellidae
Scenella amii Matthew 1902
 Sachitida -
Wiwaxia corrugata Matthew 1899
Odontogriphus
  -
Odontogriphus omalus Conway-Morris 1976
Kutorginata
 Kutorginida - Nisusiidae
Rhynchonellata
 Orthida - Bohemiellidae
Paterinata
 Paterinida - Paterinidae
Lingulata
 Lingulida - Obolidae
Hyolitha
 Hyolithida - Hyolithidae
Burgessochaeta
  -
 Archaeopriapulida - Miskoidae
Louisella pedunculata Conway Morris 1977
 Archaeopriapulida - Ottoidae
Ottoia prolifica Walcott 1911
 Archaeopriapulida - Selkirkiidae
Selkirkia "sp. A" Walcott 1911
Selkirkia columbia Conway Morris 1977
Molaria
  -
 Odaraiida - Pectocariidae
"Odaraia alata" = Pectocaris
"Odaraia alata" = Pectocaris
 Bradoriida - Svealutidae
Burgessia
  -
Megacheira
 Yohoiida - Yohoiidae
Deuteropoda
 Hymenocarina - Perspicarididae
Crustacea
 Waptiida - Waptiidae
Waptia fieldensis Walcott 1912
 Canadaspidida - Canadaspididae
Canadaspis perfecta Walcott 1912
Artiopoda
 Nektaspidida - Naraoiidae
Naraoia compacta Walcott 1912
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
 Ptychopariida - Alokistocaridae
Elrathia permulta Walcott 1918 trilobite
Artiopoda
 Vicissicaudata -
 Agnostida - Peronopsidae
"Ptychagnostus praecurrens" = Pentagnostus praecurrens
"Ptychagnostus praecurrens" = Pentagnostus praecurrens WestergÄrd 1936
Life
 Radiodonta - Hurdiidae
Hurdia sp. Walcott 1912
 Radiodonta -
Marrellomorpha
 Marrellida -
 Life - Wiwaxidae
Pollingeria grandis Walcott 1911