Abstract
New lizard fossils are described from the middle Eocene Mergen Formation, eastern Gobi Desert in Mongolia. Some 30 isolated tooth-bearing jaws represent at least six lizard taxa. These include three new iguanians that are nonchamaeleonid acrodontans; two scincomorphs having uncertain relationships within the group; and one large anguimorph that may represent a platynotan taxon. Discovery of these fossil lizards is important for accumulating nonmammalian vertebrate data, in attempting to understand a major faunal change that took place in relation to the drastic uplifting of the Mongolian Plateau in Palaeogene time.
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