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Reptilia - Avetheropoda
It was synonymized subjectively with Alexornithidae by Kurochkin (1996); it was reranked as the unranked clade Avisauridae by Cau and Arduini (2008).
It was assigned to Theropoda by Brett-Surman and Paul (1985); to Enantiornithes by Chiappe and Calvo (1994), Sanz et al. (1995) and Varricchio and Chiappe (1995); and to Euenantiornithes by Cau and Arduini (2008).
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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.