Petalodontidae

Petalodontidae

[‚ped·əl·ə′dänt·ə‚dē]
(paleontology)
A family of extinct cartilaginous fishes in the order Bradyodonti distinguished by teeth with deep roots and flattened diamond-shaped crowns.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The elasmobranchs include Chomatodus (Petalodontidae), Polyrhizodus (Petalodontidae), Orodus (Orodontidae), Leiodus (Orodontidae), and a xenacanth tooth (Xenacanthidae) (Figure 2).
Brachiopod fragments have been found in preserved stomach contents of Janassa (Petalodontidae) and Fadenia (Caseodontidae) (Moy-Thomas and Miles, 1971).