Early Miocene - Recent | image = okapi.bristol.600pix.jpg | image_width = 200px | image_caption = An Okapi in Bristol Zoo, England. | regnum = Animalia | phylum = Chordata | classis = Mammalia | ordo = Artiodactyla | familia = Giraffidae | familia_authority = Gray, 1821 | subdivision_ranks = Species | subdivision = Okapia Okapia johnstoni Giraffa Giraffa camelopardalis }} The giraffids are ruminant artiodactyl mammals that share a common ancestor with deer and bovids. The biological family Gi… (More on Giraffidae)