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Eotripteroceras

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Eotripteroceras
Temporal range: M Ordovician
Scientific classification
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Subfamily:
Michelinoceratinae
Genus:
Eotripteroceras

Flower, 1943

Eotripteroceras is a smooth-shelled michelinocerin orthocerid from the middle Ordovician of the state of New York.

The shell of Eotripteroceras is a depressed orthocone with the underside (the venter) flatter than the upper (the dorsum). The siphuncle is below the center -as viewed in horizontal orientation- and is cylindrical in form. Both siphuncle and chambers are empty.

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