File :-(, x, )
Anonymous
ITT LOS DINOSAURIOS, PARTE TRES
>> Anonymous
http://www.megaupload.com/?d=TIU7V3WJ
All the plates from Hu et al's redescription of _Shantungosaurus giganteus_, I started posting them in the other thread, but the image reply limit was reached.
>> Anonymous
/r/ this PDF Anonymous promised to post:

B.T. Roach and D.L. Brinkman. 2007. A reevaluation of cooperative pack
hunting and gregariousness in Deinonychus antirrhopus and other nonavian
theropod dinosaurs. Bulletin of the Peabody Museum of Natural History 48:
103-138.
>> Anonymous
     File :-(, x)
>>107492
http://rapidshare.com/files/27486267/Roach_Brinkman_07_Deinonychus_-_solitary_hunters.pdf.html

Posting some Benson to go along with it.
>> Anonymous
>>107495
Many thanks, Anonymous. I'm reading the PDF right now, and am frankly a bit confused about a few details: for instance, why compare Deinonychus to hunting dogs, when the obvious modern day equivalent would be a big cat. Also, I'm not sure if the authors were aware that the ora has a venomous bite, while deinonychosaur sickle claws were actually only really good for puncturing, not slashing and tearing. Not really important for the arguent, but nagging nonetheless.
>> Anonymous
>>107508
>Many thanks, Anonymous. I'm reading the PDF right now,
> and am frankly a bit confused about a few details: for
> instance, why compare Deinonychus to hunting dogs, when
>the obvious modern day equivalent would be a big cat.

Because the authors are evaluating pack hunting, and big cats don't pack hunt.

> Also, I'm not sure if the authors were aware that the ora
> has a venomous bite, while deinonychosaur sickle claws were
> actually only really good for puncturing, not slashing and
> tearing. Not really important for the arguent, but nagging
> nonetheless.

Yes, but I'm not sure if you're aware that (or missed where the authors point out) that dromaeosaurids are no slouches when it comes to their teeth or forelimbs (see p. 112, and the references pointed out there).

Also, I'm not sure if oras are actually venomous or not, I thought they only had some kind of bacteria in their mouth, but I haven't read this yet:
Fry, B. G.; N. Vidal and J. A. Norman (2006). Early evolution of the venom system in lizards and snakes. Nature 439: 584-588.

So if anyone has that and wants to upload it somewhere, I'd be grateful.
>> Anonymous
>>107513
> when the obvious modern day equivalent would be a big cat.

So you're agreeing with the authors that _Deinonychus_ was not a social predator?
>> Anonymous
     File :-(, x)
>>107514
Yep. I've always found it strange that a lot of people seem to portray all dromies as pack hunters when the only species there's been a shred of evidence for social behavior is Deinonychus.

>>107513
AFAIK oras have both the bacteria and the venom. Wouldn't want to risk either!
>> Anonymous
>>107534
Sauce on image? Style looks familiar.
>> Anonymous
>>107541
I just googled Amphicoelias. It's from some Japanese website.
>> Nagi
>>107552

Any new word on the validity of Amphicoelias? I seem to remember it being a questionable animal given the suspicious circumstances surrounding Cope's discovery.

Same thing on Bruhathkayosaurus. Any new word on it?
>> Anonymous
>>107557
SVP 2008 for _Amphicoelias_.
No idea on _Bruhathkayosaurus_.
>> Anonymous
>>107534

See>>107495.
Making clear here. Social behavior != pack hunting.
>> Anonymous
Just a reminder.

Where we've been (Part 1)
http://zip.4chan.org/an/res/106136.html
(Part 2)
http://zip.4chan.org/an/res/106917.html
Where we are (Part 3)
http://zip.4chan.org/an/res/107464.html