Inwood Formation, Manitoba

Inwood Formation
Stratigraphic range: Telychian
~436–433 Ma

PreЄ

Type| Formation
Unit of| Interlake Group
Lithology
Primary| Dolomite
Other| Halite, siltstone
Location
Coordinates|  [ ⚑ ] : 53°12′N 99°18′W﻿ / ﻿53.2°N 99.3°W﻿ / 53.2; -99.3
Paleocoordinates|  [ ⚑ ] 10°00′S 51°24′W﻿ / ﻿10.0°S 51.4°W﻿ / -10.0; -51.4
Region| Manitoba
Country|  Canada
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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]

## Contents

* 1 Fossil content
* 1.1 Trilobites
* 1.2 Ostracods
* 1.3 Strophomenata
* 1.4 Rhynchonellata
* 1.5 Gastropods
* 1.6 Cephalopods
* 1.7 Stromatoporoidea
* 1.8 Corals
* 2 See also
* 3 References
* 3.1 Bibliography

## Fossil content

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

### Trilobites

* ?Encrinurus tuberculifrons[2]

### 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

1. ↑ 1.0 1.1 Inwood Formation at Fossilworks.org
2. ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 Stearn, 1956

### 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.

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