bufonite

Bu"fon*ite, n. Etym: [L. bufo toad: cf. F. bufonite.] (Paleon.) Defn: An old name for a fossil consisting of the petrified teeth and palatal bones of fishes belonging to the family of Pycnodonts (thick teeth), whose remains occur in the oölite and chalk formations; toadstone; -- so named from a notion that it was originally formed in the head of a toad.

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