Bat

The Jamaican, Common or Mexican fruit bat (Artibeus jamaicensis) is a fruit bat native to Central and South America, as well as the Greater and many of the Lesser Antilles. It is also an uncommon resident of the Southern Bahamas. Its distinctive features include the absence of an external tail and a minimal, U-shaped interfemoral membrane. The coat is gray-brown and has a mild, soap-like odor, and is slightly paler on the underside. It is known to have a nose that looks somewhat like a third ear, and it also has pointier ears than related bats. It is typically around 9 cm in length. http://en.wikipedia.org/wiki/Jamaican_fruit_bat these bats were bigger than 09 cm ...

no sorry, it was in Palenque ruins - maybe it's a jamaican fruit bat

is it some kind of Leaf-nosed Bat? these bats live inside the Uxmal ruins.