 In 1869, Harry Govier Seeley, cataloguing the fossils of the Sedgwick Museum at Cambridge, referred three snout fragments of toothless pterosaur specimens from the Lower Cretaceous Albian Cambridge Greensand of England to "Ornithocheirus simus".These fragments had in 1859 been described by Richard Owen and referred to "Pterodactylus sedgwickii" and "Pterodactylus fittoni".By 1871 Seeley had realised "Ornithocheirus simus" was a toothed form, different from the fragments.