Biology:Eotripteroceras

From HandWiki
Short description: Extinct genus of nautiloids


Eotripteroceras
Temporal range: M Ordovician
Scientific classification
Kingdom:
Animalia
Phylum:
Class:
Subclass:
Order:
Superfamily:
Family:
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.

References

Wikidata ☰ Q5381979 entry