The word "Dinotopia" is a portmanteau of "Dinosaur", which means "terrible lizard" in Greek, and "Utopia", which means "good place". Ironically, it literally means "terrible place".
The Eleventh Code of Dinotopia (previously unknown since the tablet was broken) is "Find the Light". This is the phrase written on the front of a previous matriarch's (Marion's grandmother's?) letter.
Marion: But Karl, yours might have been the finest answer we've ever had. I'll read it now. "Is this the real life? Is this just fantasy? Caught in a landslide; no escape from reality. Open your eyes, look up to the skies, and see."