23-Million-Year-Old Lizard Fossil Found In Mexico – via Herp Digest

Published July 08, 2013

San Cristobal de las Casas, Mexico –  Mexican scientists are studying a complete fossil of a lizard that lived some 23 million years ago and whose soft tissue remains have been preserved in amber.

The small piece of fossil resin, which is in the shape of a trapezoid and entombs the skeleton, was found several months ago in the Simojovel amber deposits of the northern part of the southeastern state of Chiapas.

Amber often contains small remains of plants and animals, but it is rare to find complete vertebrates such as this lizard, preliminarily identified as a new species of the genus Anolis and currently on display at the Amber Museum in San Cristobal de las Casas.

Francisco Riquelme of the National Autonomous University of Mexico's Physics Institute told Efe the specimen, measuring about approximately 1.8 inches (or 4.5 centimeters) by .5 inches (or 1.3 centimeters) was "a complete and articulated animal that also preserves remains of soft tissue and skin."

Chiapas's Paleontology Museum director Gerardo Carbot fossil specimens found in the state date back a minimum of 23 million years ago because that is the age of the amber that is extracted from deposits in the municipalities of Simojovel, Huitihupan, El Bosque, Pueblo Nuevo, Palenque, Totolapa and Malpaso.