Inwood Formation, Manitoba Explained

Inwood Formation
Type:	Formation
Age:	Telychian ~
Period:	Telychian
Prilithology:	Dolomite
Otherlithology:	Halite, siltstone
Region:	Manitoba
Coordinates:	53.2°N -99.3°W
Paleocoordinates:	-10°N -51.4°W
Unitof:	Interlake Group

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.^[1]

Fossil content

The following fossils have been reported from the formation:^[1]

Trilobites

• ?Encrinurus tuberculifrons

Ostracods

• Leperditia hisingeri^[2]

Strophomenata

• Brachyprion cf. inflata^[2]
• Fardenia ellipsoides^[2]
• F. transversalis^[2]
• Fardenia cf. elegans^[2]

Rhynchonellata

• Camarotoechia indianensis^[2]
• Hyattidina junea^[2]

Gastropods

• Coelocaulus sp.
• Gastropoda indet.^[2]

Cephalopods

• Lowoceras imbricatum^[2]
• Mandaloceras parvulum^[2]

Stromatoporoidea

• Clathrodictyon drummondense^[2]
• Clathrodictyon cf. striatellum^[2]

Corals

• Amplexoides severnensis^[2]
• Asthenophyllum inwoodense^[2]
• Favosites cf. niagarensis^[2]
• Halysites catenularia^[2]
• Neozaphrentis tyrrelli^[2]
• Paleofavosites poulseni^[2]
• P. transiens^[2]

See also

• List of fossiliferous stratigraphic units in Manitoba

References

Bibliography

Notes and References

1. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Interlake&formation=Inwood&group_formation_member=Inwood Inwood Formation
2. Stearn, 1956