Fossil Amphibians and Reptiles from the Neogene Locality of Maramena (Greece), the Most Diverse European Herpetofauna at the Miocene/Pliocene Transition Boundary
Palaeontologia Electronica palaeo-electronica.org Fossil amphibians and reptiles from the Neogene locality of Maramena (Greece), the most diverse European herpetofauna at the Miocene/Pliocene transition boundary Georgios L. Georgalis, Andrea Villa, Martin Ivanov, Davit Vasilyan, and Massimo Delfino ABSTRACT We herein describe the fossil amphibians and reptiles from the Neogene (latest Miocene or earliest Pliocene; MN 13/14) locality of Maramena, in northern Greece. The herpetofauna is shown to be extremely diverse, comprising at least 30 different taxa. Amphibians include at least six urodelan (Cryptobranchidae indet., Salamandrina sp., Lissotriton sp. [Lissotriton vulgaris group], Lissotriton sp., Ommatotriton sp., and Sala- mandra sp.), and three anuran taxa (Latonia sp., Hyla sp., and Pelophylax sp.). Rep- tiles are much more speciose, being represented by two turtle (the geoemydid Mauremys aristotelica and a probable indeterminate testudinid), at least nine lizard (Agaminae indet., Lacertidae indet., ?Lacertidae indet., aff. Palaeocordylus sp., ?Scin- cidae indet., Anguis sp., five morphotypes of Ophisaurus, Pseudopus sp., and at least one species of Varanus), and 10 snake taxa (Scolecophidia indet., Periergophis micros gen. et sp. nov., Paraxenophis spanios gen. et sp. nov., Hierophis cf. hungaricus, another distinct “colubrine” morphotype, Natrix aff. rudabanyaensis, and another dis- tinct species of Natrix, Naja sp., cf. Micrurus sp., and a member of the “Oriental Vipers” complex). The autapomorphic features and bizarre vertebral morphology of Perier- gophis micros gen. et sp. nov. and Paraxenophis spanios gen. et sp. nov. render them readily distinguishable among fossil and extant snakes. Cryptobranchids, several of the amphibian genera, scincids, Anguis, Pseudopus, and Micrurus represent totally new fossil occurrences, not only for the Greek area, but for the whole southeastern Europe.
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