Keywords: Photograph of Okapi skull From the book 'Extinct Animals'.jpg en Text Photograph of a skull of a male Okapi showing the simple pointed bony horns like those of the Samotherium The horns were not enclosed in a horny case as are those of cattle sheep and antelopes 2014-04-10 18 35 38 https //archive org/details/extinctanimals1905lank Extinct animals pp 163 “156 1905 London Archibald Constable co ltd Edwin Ray Lankester PD-old-auto-1923 1929 Uploaded with UploadWizard Okapia johnstoni anatomy Giraffidae skulls |