Megadisocosorus

Megadisocosorus is a genus of actinocerid cephalopods similar to Armenoceras but with a short, slightly curved, breviconic shell. The siphuncle is in contact with the ventral wall, unlike that of Armenoceras in which the siphuncle is close to the center.

Megadisocosorus
Temporal range: Middle Silurian
Scientific classification
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Megadisocosorus

Foeste, 1925

Megadisocosorus is known from the Middle Silurian of North America. According to Teichert, 1964, Megadisocosorus is a member of one of the two branches of the Armenoceratidae that also includes Nybyoceras and Selkirkoceras.

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