Arduafrons Frickhinger, 1991

Poyato-Ariza F. J. & Wenz S., 2002, A new insight into pycnodontiform fishes, Geodiversitas 24 (1), pp. 139-248 : 218

Genus Arduafrons Frickhinger, 1991

TYPE SPECIES. — Arduafrons prominoris Frickhinger, 1991 .

INCLUDED SPECIES. — Monospecific genus.

Family BREMBODONTIDAE Tintori, 1981 TYPE GENUS. — Brembodus Tintori, 1981 .

INCLUDED GENERA. — The type genus, and Gibbodon Tintori, 1981 .

REVISED DIAGNOSIS. — Primitive pycnodontiform fishes with the following unique combination of primitive and derived characters: three premaxillary teeth; eight or nine teeth on main vomerine tooth row; pelvic fin placed at more than 55% of standard length; numerous fringing fulcra on paired and unpaired fins present; 10 to 14 dorsal ridge scales; six or less postcloacal ventral keel scales.

Suborder PYCNODONTOIDEI Nursall, 1996 REVISED DIAGNOSIS. — Pycnodontiform fishes with the following unique combination of primitive and derived characters: opercular process of hyomandibular absent (autapomorphy); ossifications in gular region absent; two branchiostegal rays, thin and separated; crenulations on vomerine and prearticular teeth occasional and weak if present; scales not covering the whole body; and scales rows between bases of lepidotrichia of unpaired fins absent.