| Maelonoceras Temporal range: Ordovician - Silurian | |
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| Genus: | Maelonoceras Hyatt 1884 |
Maelonoceras is a Late Ordovician - early Silurian oncocerid found in Ontario.
The shell is a faintly gibbous exogastric cyrtocone with subparallel dorsal and ventral profiles but adorally converging sides. The aperture visored, pear-shaped. The Siphuncle small, ventral.
Maelonoceras is nautiloid cephalopod included in the Oncoceratidae along with such genera as Oncoceras , Belotoceras , Digenuoceras , and Maimoceras .
 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations .(October 2015) |