BA +120 [Great Phyllopod Bed, Walcott Quarry Mbr, Burgess Shale Fm] (Cambrian of Canada)

Where: British Columbia, Canada (51.4° N, 116.5° W)

• Paleocoordinates: 37.6° N, 120.2° W (Wright 2013)

• 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 30 mm thick bed, 120 mm above "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 84421: authorized by Austin Hendy, entered by Austin Hendy on 18.10.2008, edited by Alex Lin

Creative Commons license: CC0 (CC0)

Taxonomic list

• COVERAGE: Exhaustive for all taxa. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
Algae
 Algae -
Florideophyceae
 Ceramiales - Rhodymeniophycidae
Wahpia sp. Walcott 1919
Waputikia ramosa
  -
Waputikia ramosa Walcott 1919
Marpolia spissa
  -
Marpolia spissa Walcott 1919
Morania
  -
Morania sp. Walcott 1919
Demospongiae
 Protomonaxonida - Hazeliidae
Hazelia sp. Walcott 1920 demosponge
 Protomonaxonida - Hamptoniidae
Hamptonia bowerbanki Walcott 1920 demosponge
Cambrorhytium fragilis
  -
Rhynchonellata
 Orthida - Bohemiellidae
Paterinata
 Paterinida - Paterinidae
Lingulata
 Acrotretida -
 Lingulida - Obolidae
Brachiopoda
  -
Acanthotretella spinosa Holmer and Caron 2006
Hyolitha
 Hyolithida - Hyolithidae
Tergomya
 Scenelloidea - Scenellidae
Scenella amii Matthew 1902
 Sachitida -
Wiwaxia corrugata Matthew 1899
Odontogriphus
  -
Odontogriphus omalus Conway-Morris 1976
 Hallucishaniids - Hallucigeniidae
Hallucigenia sparsa Conway Morris 1977
Artiopoda
 Vicissicaudata -
 Agnostida - Peronopsidae
"Ptychagnostus praecurrens" = Pentagnostus praecurrens
"Ptychagnostus praecurrens" = Pentagnostus praecurrens WestergÄrd 1936
 Agnostida - Eodiscidae
Pagetia bootes Walcott 1916
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
 Ptychopariida - Alokistocaridae
 Ptychopariida - Ptychopariidae
Elrathina cordillerae Rominger 1887 trilobite
 Radiodonta - Hurdiidae
Hurdia sp. Walcott 1912
 Radiodonta -
Deuteropoda
 Isoxyida - Isoxyidae
Megacheira
 Leanchoiliida - Leanchoiliidae
Leanchoilia superlata Walcott 1912
 Yohoiida - Yohoiidae
Deuteropoda
 Hymenocarina - Perspicarididae
Crustacea
 Canadaspidida - Canadaspididae
Canadaspis perfecta Walcott 1912
 Waptiida - Waptiidae
Waptia fieldensis Walcott 1912
 Bradoriida - Svealutidae
Burgessia
  -
Habelia
  -
 Selkirkiimorpha - Selkirkiidae
Selkirkia "sp. A" Walcott 1911
Selkirkia columbia Conway Morris 1977
 Archaeopriapulida - Ottoidae
Ottoia prolifica Walcott 1911
 Bilateria - Eldoniidae
Eldonia ludwigi Walcott 1911
Oesia disjuncta
  - Pikaidae
Oesia disjuncta Walcott 1911
Marrellomorpha
 Marrellida -
Marrella splendens Walcott 1912