Many people think igneous rocks cannot contain fossils. However, the
following micrograph shows fossilized neurons in a thin section of
basalt, which is an igneous rock formed from volcanic lava:
http://www.wretch.cc/album/show.php?...72468114&p=101
Image source: http://en.wikipedia.org/wiki/Basalt
Read more at http://www.wretch.cc/blog/lin440315&category_id=0