Mixtotherium
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Mixtotherium is an extinct genus of Palaeogene artiodactyls belonging to the monotypic family Mixtotheriidae. Known informally as mixtotheriids or mixtotheres, these artiodactyls were endemic to weste
The Mixtotheriidae is thought to be closely related to the Cainotheriidae, including Cainotherium (skeleton at Natural History Museum of Basel)
Rock hyrax (Procavia capensis) skull, National Museum of Natural History. The mandibular rami of hyraxes are wide similar to those of Mixtotherium.
M. priscum mandible, Natural History Museum of Basel
Pseudamphimeryx
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Pseudamphimeryx is an extinct genus of Palaeogene artiodactyls belonging to the Amphimerycidae that was endemic to the central region of western Europe and lived from the Middle to Late Eocene. It was
Because of some similar anatomical traits of the amphimerycids to those of ruminants (like the Java mouse-deer (Tragulus javanicus), pictured), they were previously considered ruminants by biologists. Today, their evolutionary relationship to ruminants and other artiodactyls proves unclear.
P. renevieri lower dentition, 1910
Palaeogeography of Europe and Asia during the Middle Eocene with possible artiodactyl and perissodactyl dispersal routes.