[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: Ichthyosaur breathing

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.

I don't know what you mean here, but you don't mean *Grippia*, the exceedingly basal Early Triassic beastie with phalanges that are still long bones and the manual phalangeal formula of 5-6-6-5-4.