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Franchia
Taxonomy
Zigzagiceras (Franchia) was named by Sturani (1967).
It was reranked as Franchia by Besnosov and Mitta (1993).
It was assigned to Zigzagiceras by Sturani (1967); and to Perisphinctidae by Besnosov and Mitta (1993).
It was reranked as Franchia by Besnosov and Mitta (1993).
It was assigned to Zigzagiceras by Sturani (1967); and to Perisphinctidae by Besnosov and Mitta (1993).
Subtaxa