A new genus and species of extinct rodent has been identified from two fossilized teeth found in Puerto Rico. This artist’s reconstruction shows the likely position of the fossil molars in the skull of Caribeomys merzeraudi. Image credit: Jorge Velez-Juarbe. Caribeomys merzeraudi lived in Puerto Rico during the Oligocene epoch, some 29 million years ago. About the size of a mouse, it is the Caribbean’s smallest known rodent and one of the region’s...
