Marble Canyon collection (Cambrian of Canada)

Where: British Columbia, Canada (51.2° N, 116.1° W: paleocoordinates 3.6° S, 79.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Ehmaniella trilobite zone, Stephen Formation, Middle Cambrian (513.0 - 501.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: slope; lithified, calcareous claystone and lithified lime mudstone

• like the Walcott Quarry and most other soft-bodied assemblages of the Burgess Shale, occurs in direct association with the Cathedral Escarpment, a major break in submarine topography. The new assemblage was preserved on the offshore margin of the escarpment.
• 2-m horizon of fine-grained claystones near the top of the Stephen Formation

Size classes: macrofossils, mesofossils

Preservation: soft parts, original calcite, original carbon

Reposited in the ROM

Collection methods: quarrying,

Primary reference: J. B. Caron, R. R. Gaines, C. Aria, M. G. Mángano, and M. Steng. 2014. A new phyllopod bed-like assemblage from the Burgess Shale of the Canadian Rockies. Nature Communications 5(3210):1-6 [S. Peters/S. Peters]more details

Purpose of describing collection: taphonomic analysis

PaleoDB collection 171308: authorized by Shanan Peters, entered by Shanan Peters on 05.07.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Selkirkiidae
  - Selkirkiidae
unclassified
  -
Arthropoda "new J" Latreille 1829
Arthropoda "new I" Latreille 1829
Arthropoda "new H" Latreille 1829
Arthropoda "new E" Latreille 1829
Arthropoda "new C" Latreille 1829
Arthropoda "new D" Latreille 1829
Arthropoda "new K" Latreille 1829
Arthropoda "new A" Latreille 1829
Arthropoda "new L" Latreille 1829
Arthropoda "new B" Latreille 1829
Arthropoda "new F" Latreille 1829
Arthropoda "new G" Latreille 1829
 Parvancorinomorpha - Parvancorinidae
Primicaris sp. Zhang et al. 2003
 Radiodonta - Anomalocarididae
 Radiodonta - Hurdiidae
Misszhouia
  -
Sidneyia
  -
Sidneyia sp. Walcott 1911
 Bradoriida - Svealutidae
Mollisonia
  -
Mollisonia sp. Walcott 1912
Molaria
  -
Habelia
  -
Trilobita
 Corynexochida - Dolichometopidae
Bathyuriscus sp. Meek trilobite
 Agnostida - Peronopsidae
Peronopsis sp. Corda 1847 trilobite
 Ptychopariida - Alokistocaridae
Ehmaniella sp. Resser 1937 trilobite
 Ptychopariida - Ptychopariidae
Elrathina sp. Resser 1937 trilobite
Crustacea
 Canadaspidida -
Perspicaris sp. Briggs 1977
 Canadaspidida - Canadaspididae
Canadaspis sp. Novozhilov in Orlov 1960
Malacostraca
 Phyllocarida -
Tuzoia sp. Walcott 1912
Crustacea
 Protocaridida -
? Branchiocaris sp. Briggs 1976
Marrella
  -
Marrella sp. Walcott 1912
Xiphosura
 Aglaspida -
Aglaspida indet. Walcott 1911
Isoxys
  -
Isoxys sp. Walcott 1890
 Nektaspida -
Naraoia compacta Walcott 1912
Hyolitha
 Hyolithida - Hyolithidae
Haplophrentis sp. Babcock and Robison 1988
Brachiopoda
  -
Acanthotretella sp. Holmer and Caron 2006
Lingulata
 Acrotretida - Acrotretidae
? Linnarssonia indet. Walcott 1885
Paterinata
  -
Paterinata indet. Williams et al 1996
unclassified
  -
Annelida indet. Lamarck 1809
Burgessochaeta
  -
Metaspriggina
  -
Metaspriggina sp. Simonetta and Insom 1993
unclassified
  -
Ctenophora indet. Eschscholtz 1829
Banffia
  -
Oesia
  -
Demospongea
 Protomonaxonida - Leptomitidae
cf. Leptomitus sp. Walcott 1886 demosponge
Bryopsidophyceae
 Caulerpales - Caulerpaceae
Margaretia sp. Walcott 1931
 Algae -