Bearpaw Ammonite
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Predator and Prey in The Bearpaw Sea
Crabs, lobsters, cuttlefish, turtles and ammonites swam along with beasts like the mosasaurs, ichthyosaurs, and ten-ton fish with 10 foot jaws with hundreds of teeth. They thrived in an ocean rich with plankton due to the abundant fresh water that flowed into it from the Rockies as they rose and the dinosaurs made their brief appearance on the lands.
 
22" Mosasaur jaw that could crush an Ammonite like a peanut shell.
It is in dispute whether or not mosasaurs or other marine reptiles ate ammonites. Some believe that the circular marks found on ammonite fossils were made by limpids, a barnacle like parasite that may have attached itself to the shell of the ammonite and, with the help of gastric acids, bore in for a meal.
Mosasaur feeding 2
 
Next Page: Man's encounters with the Sacred Spiral
 
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