|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|A. López-Arbarello et al. 2010||As for type and only species Neochallaia tellecheai; Small, fusiform actinopterygian with slender body; head length about 0.3 of SL (length from the tip of the snout to the base of the caudal fin at the hinge line); body depth about 0.3 of SL; skull roof bones ornamented with small tubercles; dorsal fin placed at the middle of the body; pelvic fin origin slightly anterior to dorsal fin origin;
caudal fin strongly heterocercal, the dorsal lobe being longer than the ventral lobe; fin rays evenly segmented except for a slightly longer basal segment, and branched only very distally; the lateral line extends enclosed in tubular scales in the body lobe of the tail and, at least for a short span onto the fin web; body completely covered with small and numerous ganoid scales, with smooth surface and finely pectinate posterior border; scales on the body lobe with long and sharp posterodorsally directed posteroventral process; a series of large lanceolate dorsal median scutes preceding the
caudal fin, which are ornamented with delicate ridges emerging latero-posteriorly from a main median ridge.