 Possible juvenile specimens of "G. subulatus" may be known from several complete skeletons that had previously been classified as the separate species "Pterodactylus micronyx".These specimens have also been referred to the genus "Aurorazhdarcho", which may itself be a synonym of "Gnathosaurus".However, because "Gnathosaurus subulatus" is currently known only from skulls and jaws, and adult "Aurorazhdarcho micronyx" known only from a skeleton lacking a skull, the two cannot be confidently referred to the same species.