Coelurosauria Huene 1914 [Gauthier 1986] Maniraptora Gauthier 1986 †Alvarezsauridae Bonaparte 1991 [Sereno 1999] see Family Alvarezsauridae Bonaparte, 1991 Genus †[Alvarezsaurus] Bonaparte, 1991 1 †Alvarezsaurus calvoi Bonaparte, 1991a