1. 
   Cyathocrinites
   extinct genus of crinoids, or sea lilies, found as fossils in Silurian to Permian marine rocks (between 438 million and 245 million years old). The ...
   Found op http://www.britannica.com/eb/a-z/c/173
   
   
2. 
   Cyathocrinites
   Cyathocrinites is an extinct genus of crinoid that lived from the Early Silurian to the Late Permian in Europe and North America. ==Sources== ...
   Found op http://en.wikipedia.org/wiki/Cyathocrinites
   
   

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