BA -370 [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 20 mm thick bed, 370 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: taxonomic analysis

PaleoDB collection 84420: 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
unclassified
  -
Algae
 Algae -
 Gephyrea - Pikaidae
Oesia sp. Walcott 1911
Demospongiae
 Protomonaxonida - Hazeliidae
Hazelia sp. Walcott 1920 demosponge
 Protomonaxonida - Halichondritidae
"Halicondrites elissa" = Halichondrites
"Halicondrites elissa" = Halichondrites 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
Kutorginata
 Kutorginida - Nisusiidae
Rhynchonellata
 Orthida - Bohemiellidae
Paterinata
 Paterinida - Paterinidae
Lingulata
 Lingulida - Obolidae
 Acrotretida -
Hyolitha
 Hyolithida - Hyolithidae
 Archaeopriapulida - Selkirkiidae
Selkirkia columbia Conway Morris 1977
Molaria
  -
Plenocaris
  -
 Odaraiida - Pectocariidae
"Odaraia alata" = Pectocaris
"Odaraia alata" = Pectocaris
 Bradoriida - Svealutidae
Megacheira
 Yohoiida - Yohoiidae
 Leanchoiliida - Leanchoiliidae
Leanchoilia superlata Walcott 1912
Crustacea
 Canadaspidida - Canadaspididae
Canadaspis perfecta Walcott 1912
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
 Ptychopariida - Alokistocaridae
Elrathia permulta Walcott 1918 trilobite
 Ptychopariida - Ptychopariidae
Elrathina cordillerae Rominger 1887 trilobite
Artiopoda
 Agnostida - Peronopsidae
"Ptychagnostus praecurrens" = Pentagnostus praecurrens
"Ptychagnostus praecurrens" = Pentagnostus praecurrens WestergÄrd 1936
Life
 Radiodonta - Hurdiidae
Hurdia sp. Walcott 1912
 Radiodonta -
 Bilateria - Eldoniidae
Eldonia ludwigi Walcott 1911
Marrellomorpha
 Marrellida -
 Life - Wiwaxidae
Pollingeria grandis Walcott 1911