 In 1845 , amateur geologists William <unk> Atherstone and Andrew Geddes Bain discovered several fossils near <unk> , Cape Province , in the <unk> River Valley . This was the first dinosaur find in all of the Southern Hemisphere and Africa . In 1849 and 1853 , Bain sent some of the fossils to the British paleontologist Richard Owen for identification . Among them was an upper jaw Bain referred to as the " Cape Iguanodon " ; as such the site was named " <unk> " . Atherstone published about the find in 1857 , but lamented in 1871 that it had thus far received no attention in London . Only in 1876 did Owen name a series of specimens from the collection as Anthodon <unk> . Anthodon means " flower tooth " . The partial holotype skull BMNH <unk> , the left jaw BMNH 47338 , the matrix BMNH 47338 including bone fragments and impressions of the anterior skull , and the vertebrae BMNH <unk> were all assigned to Anthodon . In 1882 , Othniel Charles Marsh assigned Anthodon to Stegosauridae based on BMNH 47338 , and in 1890 , Richard Lydekker found that although Anthodon was a pareiasaur , its teeth were similar to those of Stegosauridae . 
