What is "nanosaur"

Nanosaur is a science fiction third person shooter video game developed by Pangea Software and published by Ideas From the Deep for Mac OS 9 and Microsoft Windows. The player takes on the role of a "Nanosaur", a genetically engineered intelligent dinosaur from the future, sent back in time just prior to the Cretaceous–Paleogene extinction event. The game was being ported to Linux by Three Axis Interactive, but the port was never completed. Around 2003 the source code of the game was made available by the developer under a restrictive license.