However , at the time , many scientists incorrectly considered Ornithocephalus to be the valid name for Pterodactylus .
Like most pterosaurs described in the mid 19th century , Rhamphorhynchus was originally considered to be a species of Pterodactylus .
At the time , many scientists incorrectly considered Ornithocephalus to be the valid name for Pterodactylus .
Like most pterosaurs described in the mid 19th century , Rhamphorhynchus was originally considered to be a species of Pterodactylus .