Complex sentence: There is only a single described species within "Aggiosaurus", the type species "A. nicaeensis", named in 1913 by Ambayrac, who mistakenly classified it as a megalosaurid.
Split into simpler sentences: There is only a single described species within "Aggiosaurus", the type species "A. nicaeensis". The type species, and only species, was named in 1913 by Ambayrac, who mistakenly classified it as a megalosaurid.