Matt Troutman wrote: <<Contrary to the Hedges and Poling study where turtles are archosaurian archosauromorphs, M. deBraga and Rieppel (1997) in ZJLS find that turtles (Testudines) are lepidosauromorphs, showing a sister-group relationship to Sauropterygia.>> But if sauropterygians are actually archosauromorphs... Nick P.