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Eurybiades Jesse Russell

Eurybiades

Jesse Russell

Published April 11th 2012
ISBN : 9785510924770
Paperback
78 pages
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 About the Book 

High Quality Content by WIKIPEDIA articles! Euryapsida is a polyphyletic (unnatural, as the various members are not closely related) group of reptiles that are distinguished by a single temporal fenestra, an opening behind the orbit, under which theMoreHigh Quality Content by WIKIPEDIA articles! Euryapsida is a polyphyletic (unnatural, as the various members are not closely related) group of reptiles that are distinguished by a single temporal fenestra, an opening behind the orbit, under which the post-orbital and squamosal bones articulate. They are different from Synapsida, which also have a single opening behind the orbit, by the placement of the fenestra. In synapsids, this opening is below the articulation of the post-orbital and squamosal bones. It is now commonly believed that euryapsids are in fact diapsids (which have two fenestrae behind the orbit) that lost the lower temporal fenestra. There are no surviving descendants of the euryapsids.