Inwood Formation, Manitoba

For Inwood Formation, New York, see Tuckahoe marble.

Inwood Formation
Stratigraphic range: Telychian ~
Type	Formation
Unit of	Interlake Group
Lithology
Primary	Dolomite
Other	Halite, siltstone
Location
Coordinates	53.2°N 99.3°W / 53.2; -99.3
Approximate paleocoordinates	10.0°S 51.4°W / -10.0; -51.4
Region	Manitoba
Country	Canada
Inwood Formation, Manitoba (Canada) Inwood Formation, Manitoba (Manitoba)

The Inwood Formation is a geologic formation in Manitoba. The silty and salty dolomites preserve fossils dating back to the Telychian stage of the Silurian period.

Fossil content

The following fossils have been reported from the formation:

Trilobites

• ?Encrinurus tuberculifrons

Ostracods

• Leperditia hisingeri

Strophomenata

• Brachyprion cf. inflata
• Fardenia ellipsoides
• F. transversalis
• Fardenia cf. elegans

Rhynchonellata

• Camarotoechia indianensis
• Hyattidina junea

Gastropods

• Coelocaulus sp.
• Gastropoda indet.

Cephalopods

• Lowoceras imbricatum
• Mandaloceras parvulum

Stromatoporoidea

• Clathrodictyon drummondense
• Clathrodictyon cf. striatellum

Corals

• Amplexoides severnensis
• Asthenophyllum inwoodense
• Favosites cf. niagarensis
• Halysites catenularia
• Neozaphrentis tyrrelli
• Paleofavosites poulseni
• P. transiens

See also

• List of fossiliferous stratigraphic units in Manitoba

References

Bibliography

• Stearn, C. W (1956), "Stratigraphy and palaeontology of the Interlake Group and Stonewall Formation of Southern Manitoba", Geological Survey of Canada Memoir, 281: 1–16