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Re: Yet even more questions (and I'm sure there'll be more...)



Dinogeorge wrote:
>
>(quoting Jaime Headden):
>
No, no, I said HP Alessandro Marisa
>
>You might want to look at
>
>Olshevsky, G. & Ford, T. L., 1994. "The Origin and Evolution of the
>Heterodontosaurians," Kyoryugaku Saizensen [Dino-Frontline] 8: 74â97
>[illustrations by T. L. Ford; in Japanese].
>
Should be an interesting read, but I don't have acces to it unfortunately.
>
>Most of the characters that Jaime lists are noted therein. The article
>explains why heterodontosaurians make reasonably good basal
marginocephalians
>rather than ornithopods. This thesis goes back at least to Albert Santa
>Luca's description of Heterodontosaurus and was also picked up on by Zhao
>Xijin in his infamous 1983 Acta Pal Polonica paper with all those nomina
nuda.
>
Is this general idea been with us since that long!?! So even it's original
describer thought it was probably related to the Marginocephalians. Strange
to think this group came out as basal Ornithopoda in other analyses,
although, apart from the details mentioned by _Alessandro Marisa_, they do
look like odd Hypsies in general appearance. This is just one of those cases
that the paleontological community (if there is one) is flawed due to
overall appearance, as was the case with the basal whales, which were
supposed to have evolved from a Mesonychid-like animal, but in truth are
more like swimming deers.