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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. T. McDonald et al. 2012||Diagnosed by a single autapomorphy: predentary comes to a point at its rostral margin, with divergent lateral processes. Also diagnosed by the following unique combination of characters: dentary tooth row is convex dorsally in lateral view (otherwise known in only Owenodon hoggii [Galton 2009], and this might be due to crushing [Norman 2012]; if so, this feature would be another autapomorphy of Proa); dentary tooth row extends caudal to the base of the coronoid process; platform between the dentary tooth row and the base of the coronoid process; coronoid process expanded along rostral and caudal margins; maxilla lacks a rostrodorsal process; quadrate straight in lateral view; ilium with dorsal margin convex dorsally, non-pendant supraacetabular process, and postacetabular process that tapers without a break in slope along its dorsal margin; cranial pubic process concave along its dorsal margin but lacks expansion of distal end.|