Arctosirenites definitions

Arctosirenites

1) Triassic ammonite
Found on https://www.crosswordclues.com/clue/arctosirenites

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Arctosirenites

Arctosirenites is an extinct ceratitid ammonoid from the Triassic of British Columbia and Nunavut, Canada, included in the Trachyceratidae. ...
Found on http://en.wikipedia.org/wiki/Arctosirenites

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