The first record of amphisbaenian and anguimorph lizards (Reptilia, Squamata) from the upper Miocene Solnechnodolsk locality in Russia

The amphisbaenian and anguimorph fossil lizards from the late Miocene (MN 13) Solnechnodolsk locality (southern European Russia) are described. Amphisbaenians are represented only by isolated vertebrae of which more precise allocation is difficult. The anguine material shows the presence of at least two taxa which are described from this area for the first time: Anguis cf. rarus and Ophisaurus cf. spinari. The A. rarus was previously known only from the early Miocene of Germany. Ophisaurus spinari has a broad stratigraphic range – from the early and middle Miocene of Central Europe, with the last occurrence documented from the late Pliocene of Italy. However, no record was known from the late Miocene, which would show an important part of the story. The parietal of A. cf. rarus forms the first evidence of its survival to the end of the Miocene by its shifting to south areas of Eastern Europe, together with O. spinari. The Solnechnodolsk material is evidence of a broad spatial and/or temporal distribution of both these anguine taxa and the parietal of Anguis unambiguously documents the presence of this taxon in Russia already in the late Miocene. The thermophilic forms in Solnechnodolsk are represented by monitor lizards (Varanus).