Poebrotherium wilsoni (Leidy 1847; Late Eocene; 90cm tall) nests basal to the camel-cow-deer clade and close to the pig clade. Distinct from camels the feet lack a pad, the jaws lack a diastema and the teeth are unspecialized, the postorbital bar is incomplete.

Pleuraspidotherium aumonieri (Lemoine 1885; Paleocene) was originally considered an unugulate, then an insectivore. Here it nests basal to the camel line of artiodactyls in the LRT. Note the long premaxillary teeth and maxillary notch with diastema. The dentary has procumbent anterior teeth. The premolars are molarized.

Camelus dromedarius (Linneaus 1758; extant; 2m at the shoulder) is the Arabian camel, distinctive for its one hump of fat over the dorsal spines. These desert dwellers are herbivorous, active during daylight and fully domesticated. This is the most primitive member of this clade.

Micromeryx azanzae (Sánchez and Morales 2008, Miocene) is a fanged musk deer that currently nests between Camelus and Ovis.

Bos taurus (Linneaus 1758) is the living cattle (cow + bull). Here this taxon nests between Micromeryx and Giraffa. Note the shorter tibia, the more robust ribs and the taller dorsal hump. The tail is longer. The limbs are shorter.

Giraffa camelopardalis (Linneaus 1758) is the living giraffe, the tallest living mammal. Derived from a sister to Micromeryx, the giraffe greatly elongates the cervical series and limbs. The torso is shortened, the lumbar region is virtually lost and all teeth are missing from the premaxilla. The giraffed browses on tall trees.