Lavaloceras is a genus of middle Ordivician discosorids included in the Westonoceratidae. The shell as nearly straight, with a slight exogastic curvature, and is rather short, breviconic.

Lavaloceras
Temporal range: Middle Ordovician
Scientific classification
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Lavaloceras

Flower, 1952

According to Teichert, 1964, Lavaloceras is more closely related to Westonoceras and Winnipegoceras than to Faberoceras which is thought to have given rise to the Lowoceratidae

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