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Lavaloceras
''Lavaloceras'' is a middle Ordivician discosorid included in the Westonoceratidae. The shell as nearly straight, with a slight exogastic curvature, and is rather short, breviconic. 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 ==References==
* Curt Teichert, 1964. Nautiloidea - Discosorida; Treatise on Invertebrate Paleontology, Part K. Geological Society of America. * (Fossilworks ''Lavaloceras'' )
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