1. 
   Diplocaulus
   ---- Species-level: Diplocaulus (meaning "double caul") is an extinct genus of leponspondyl amphibian from the Permian period of North America. It is one of the largest lepospondyls, with a distinctive boomerang-shaped skull. Remains attributed to Diplocaulus have been found from the Late Permian o...
   Found op http://en.wikipedia.org/wiki/Diplocaulus
   
   
2. 
   Diplocaulus
   (pronounced DIP-low-cawl-us) Diplocaulus meaning souble stalk) was not a dinosaur but an early amphibian, long extinct. It had a boomerang-shaped head (formed by two elongated bones at the back of the head), four short legs, and a short tail. It was 3 feet (1 m) long and lived from the late Carbonif...
   Found op http://www.enchantedlearning.com/subjects/dinosaurs/glossary/
   
   

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