Southern Manitoba, Atikameg Dolomite, Dunsekikan Island (Silurian to of Canada)

Where: Manitoba, Canada (51.6° N, 98.5° W: paleocoordinates 11.4° S, 52.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Atikameg Dolomite Formation (Interlake Group), Telychian to Telychian (438.5 - 427.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; red, yellow dolomite

• Biostrom.
• Dolomite, very pale orange to dark yellowish orange, fine grained, massively bedded, porous, weathers to a soft surface, small caves present near the top.

Size class: macrofossils

Primary reference: C. W. Stearn. 1956. Stratigraphy and palaeontology of the Interlake Group and Stonewall Formation of Southern Manitoba. Geological Survey of Canada Memoir 281:1-162 [S. Holland/T. Hanson/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 26635: authorized by Steven Holland, entered by Tori Hanson on 20.10.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Homeospira lowi
Anthozoa
 Stauriida - Streptelasmatidae
Asthenophyllum inwoodense
Stromatoporoidea
 Clathrodictyida - Clathrodictyidae
Clathrodictyon cf. drummondense
Clathrodictyon cf. drummondense stromatoporoid sponge
Strophomenata
 Orthotetida - Chilidiopsidae
Fardenia ellipsoides