
Perleidiformes are an extinct order of prehistoric bony fish. ==Timeline of genera== ImageSize = width:1000px height:auto barincrement:15px PlotArea = left:10px bottom:50px top:10px right:10px Period = from:-251 till:-190 TimeAxis = orientation:horizontal ScaleMajor = unit:year increment:5 start:-251 ScaleMinor = unit:year increment:1 start:-251 T...
Found on
http://en.wikipedia.org/wiki/Perleidiformes

(from the article `chondrostean`) ...large gular (i.e., in the throat region) plates; small opercular (i.e., gill cover) apparatus. One family, Europe and North America.Order ...
Found on
http://www.britannica.com/eb/a-z/p/45
No exact match found.