
Semionotiformes (`flag-back form`) is an order of primitive, ray-finned, primarily freshwater fish from the Triassic to the Cretaceous. The most well-known genus is Semionotus of Europe and North America. ==Timeline of genera== ImageSize = width:1500px height:auto barincrement:15px PlotArea = left:10px bottom:50px top:10px right:10px Period = fr.....
Found on
http://en.wikipedia.org/wiki/Semionotiformes

(from the article `holostean`) The division Holosteans includes the orders Semionotiformes, Pycnodontiformes, Amiiformes, and perhaps Pachycormiformes. In these orders the ...
Found on
http://www.britannica.com/eb/a-z/s/63
No exact match found.