Re: [dinosaur] Turning ankylosaur over on its back

[Martin BÃker <martin.baeker@tu-bs.de>]

Look for some easier snack?

On Tue, 30 Mar 2021 15:12:40 +0200 (CEST)
Poekilopleuron <dinosaurtom2015@seznam.cz> wrote:

> Thank you for interesting informations. So what do you suggest T. rex
> did when trying to take down an adult, grown ankylosaurus? Tom
> 
> ---------- PÅvodnà e-mail ----------
> Od: Martin BÃker <martin.baeker@tu-bs.de>
> Komu: Poekilopleuron <dinosaurtom2015@seznam.cz>
> Datum: 30. 3. 2021 14:02:37
> PÅedmÄt: Re: [dinosaur] Turning ankylosaur over on its back 
> "It seems no one has taken this on so I'll give it my 2 cents: 
> 
> The maximum force a T.rex could exert with his legs was limited. 
> Simulations I did a looong time ago showed that a plausible maximum 
> force when standing on one leg is 1.5 body masses. 
> https://urldefense.com/v3/__https://www.tandfonline.com/doi/abs/10.1671/039.029.0213__;!!LIr3w8kk_Xxm!4CmrxqxNH6pG1Ak3-rFqNz3iAz_OauXsHJtZfCaQJizgPAO6f9P8WPeNNxgePkrE$
>   
> 
> To turn over an Ankylosaur with a hind foot, the T. rex would have to 
> stand on one leg and this leg would have to bear the mass of the T.
> rex plus the turning force; it seems implausible that this could be 
> possible. 
> 
> From a pure force point of view, things might look better when using 
> the mouth since both legs would then bear the force, but in order not 
> to opple over one leg would have to placed far forward, the other far 
> backward, which would readuce the maximum muscle force. 
> 
> With a smaller Ankylosaur, I would think it might be possible, but I 
> doubt it is feasible with an 8-ton animal, especially since I would
> not expect the ankylosaur to hold still while the T. rex looks for
> the optimum lever arm position... 
> 
> Disclaimer: I did not do any calculations to back this up, it is 
> based mainly on my physics intuition. 
> 
> On Fri, 26 Mar 2021 07:03:48 +0100 (CET) 
> Poekilopleuron <dinosaurtom2015@seznam.cz> wrote: 
> 
> > Good day! 
> > 
> > 
> > 
> > 
> > I was wondering if it is still plausible scenario that an adult 
> > ankylosaur could be turned on its back by a hind foot or a head of
> > a large theropod? Are there any biomechanical studies about how big
> > a force must be invested in order to turn say 8 ton _Ankylosaurus 
> > magniventris_ over? Thank you in advance! Tom   
> 
> 
> 



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