Pseudorthoceras knoxense
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Specimen #693
Taxon: Pseudorthoceras knoxense (McChesney)
Locality: McCoy, Eagle County, CO
Age: Pennsylvanian Period
Rock unit: Minturn Formation
Collector: W. Itano
This is a fragment of a straight nautiloid.
It is by far the most common nautiloid at McCoy.
(Length 3 cm.)
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