Ellinoceras

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Ellinoceras
Temporal range: Middle Ordovician
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Nautiloidea
Order: Actinocerida
Family: Actinoceratidae
Genus: Ellinoceras
Balashov, 1960

Ellinoceras is a genus of small, straight, annulate actinoceratid from the Middle Ordovician of northeastern Siberia with strongly sinuous sutures and subcentral siphuncle. Sutures have 14 narrow lobes and saddles, the ventral lobe deep and broad with a small median saddle. The siphuncle segments are short and broad with short necks and a wide endosiphuncular tube.

Ellinoceras somewhat only superficially resembles other members of the Actinoceratidae and is distinct mainly by its sinuous sutures.

References[edit]

  • Curt Teichert 1964 Acinoceratoidea. Treatise on Invertebrate Paleontology Part K Mollusca 3. Geological Society of America and University of Kansas Press.
  • "Ellinoceras". The Paleobiology Database. Retrieved 17 June 2012.