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Aussie hypsies (was Re: Dwarf Allosaurs)
Dann Pigdon wrote:
There was also quite
a variety of hypsilophodontid species from the southern Victorian sites,
them quite large for hypsies.
With _Qantassaurus_ the tally is now four (including the poorly-known
_Fulgurotherium_). It may be that the phyletic diverity of Aussie
ornithopods may be greater than usually thought. As somebody pointed out in
a previous posting (forgotten who, maybe it was you Dann! - apologies if it
was) the "hypsilophodontid" _Atlascopcosaurus_ shows striking similarities
in dental morphology to _Muttaburrasaurus_ (originally regarded as an
iguanodontid, but now placed near the base of the Euornithopoda). The
Aussie ornithopod genera which we call "hypsilophodontids" may represent
several different euornithopod lineages.
I've heard from several sources that there's a paper coming out soon that
splits the Hypsilophodontidae up into several not-so-closely-related
lineages. I can't wait to see it. At the very least, it could put a whole
new spin on the relationships of the Aussie hypsilophodontids.
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