Chambered Nautilus: Living Fossil?

The Chambered Nautilus is considered by many scientists to be a living fossil. Why? The Chambered Nautilus, also known as Nautilus Pompilius by its scientific name, is the largest and most common of about six species known to exist. It has remained unchanged for over 400 million years. The nautilus is a mollusk and a member of the cephalopod family and lives in deep waters.

This entry was posted on Monday, June 1st, 2009 at 4:20 pm and is filed under Invertebrates. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.