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Re: Ichthyosaur breathing



Jaime A. Headden wrote:

Motani has discussed this change in
ichthyosaur evolution from the "eel-like" ichthyopterygian *Utatsusaurus* and
"basal" ichthyosaur *Cymbospondylus* to the more tail-powered *Grippia*,
shastasaurs and mixosaurs, and then the more "dolphin-like" *Temnodontosaurus*
and ophthalmosaurs/stenopterygids.

As someone who knows very little about ichthyosaurs, I have question. Is the mid-Triassic swimmer _Hupehsuchus_ still regarded as being close to the origin of the Ichthyopterygia?