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Re: Dinos galore [snip] and Tendaguru dinos
Nick Gardner <email@example.com> wrote:
Some absolutely amazing sound stuff. So, does this mean that an adult
Alioramus would have looked more like Tarbosaurus?
At the very least, adult _Alioramus_ would probably have had more elaborate
cranial ornamentation than _Tarbosaurus_.
On the topic of Tendaguru dinosaurs...
What theropods and ornithopods are known from the Tendaguru?
_Allosaurus_ and _Ceratosaurus_ species have been named based on Tendaguru
material. I'm not certain that these are correctly referred; they are based
on fragmentary material, and usually treated as _nomina dubia_.
_Dryosaurus lettowvorbecki_ is the only Tendaguru ornithopod that I know of.
It's sometimes placed in its own genus, _Dysalotosaurus_.
BTW, there's also _Kentrosaurus_, a Tendaguru stegosaur.
Aren't they mostly species that were referred to N. American genera known
at the time?
The Tendaguru species of _Brachiosaurus_ and _Barosaurus_ have been assigned
to the new genera _Giraffatitan_ and _Tornieria_, respectively. These
assignments have not received universal acceptance, however. To my mind,
there is strong evidence that the Tendaguru brachiosaur should be granted
its own genus, for which _Giraffatitan_ (originally proposed by Paul as a
subgenus) is available. Not only are the skulls of _B. altithorax_ and _B.
brancai_ (= _G. brancai_) quite distinct, but I'm not certain of any
synapomorphies that can hold these two species together to the exclusion of
other brachiosaurid species.
AFAIK, _Dicraeosaurus_ is unique to Tendaguru. The problematic sauropod
genera _Janenschia_ and _Tendaguria_ were named much later. Both are unique
to the Tendaguru beds.
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