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Extinct Animal Questions
Topic Started: Nov 26 2013, 10:24 PM (193,430 Views)
babehunter1324
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That is something that puzzles me... Ibrahim et al give a weight of around 6 tons for Spinosaurus, it has been argued that the main reason why it's weight was decreased so much realtive to previous estimates was dure to the fact the legs and hips were much smaller than previously tought... Yet, doesn't seem a bit weird that a 15 meters long animal with very dense bones weights less* than a 12 meters long theropod with longer limbs and a bigger hip bone but a much more pneumatic skeleton?

*Going by Scott Hartmann estimates of a Sue's weight (around 8,400 kg).
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Jules
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Mihi est imperare orbi universo

Incinerox, could you please go ans argue with this LordOfStamps guy for me about the twenty tonnes xD I gave up.

http://comments.deviantart.com/1/500698883/3691774030
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CyborgIguana
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Is it possible that at least some mosasaurs may have been venomous in the manner of present-day monitor lizards?
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stargatedalek
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I'm not slow! That's just my moe!

its possible, but I doubt it given that its held in the saliva rather than fangs and as such it would be much less effective in water

does anyone have a skeletal reference I can use for eupodophis? I have photos of the skeleton but I'd rather use a pre-existing reference if possible
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DinoBear
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Would solid bones really double the weight of Spinosaurus?

IIRC there is a study that states that T. rex would only weigh about 7% more with solid bones, but I can't seem to find it and so I'm not sure how well my memory serves me.
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stargatedalek
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I'm not slow! That's just my moe!

well not only that but the estimated neck length nearly doubled
Edited by stargatedalek, Jan 12 2015, 05:27 PM.
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Incinerox
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Āeksiot Zaldrīzoti

Crooky
Jan 12 2015, 08:53 AM
Incinerox, could you please go ans argue with this LordOfStamps guy for me about the twenty tonnes xD I gave up.

http://comments.deviantart.com/1/500698883/3691774030
HA! I'm not gonna call out Scott Hartman if he says my calculations are bogus. I'd take his word on the matter over mine any day.

I'm gonna have to accept defeat there.
Edited by Incinerox, Jan 12 2015, 08:11 PM.
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Posted Image Guat
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Incinerox
Jan 12 2015, 08:07 PM
Crooky
Jan 12 2015, 08:53 AM
Incinerox, could you please go ans argue with this LordOfStamps guy for me about the twenty tonnes xD I gave up.

http://comments.deviantart.com/1/500698883/3691774030
HA! I'm not gonna call out Scott Hartman if he says my calculations are bogus. I'd take his word on the matter over mine any day.

I'm gonna have to accept defeat there.
Tell him on how Mark Witton found out how the calculations are correct.
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Iben
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There'll be no foot-walking! Just air-flying!

AVCDPS
Jan 12 2015, 08:22 PM
Incinerox
Jan 12 2015, 08:07 PM
Crooky
Jan 12 2015, 08:53 AM
Incinerox, could you please go ans argue with this LordOfStamps guy for me about the twenty tonnes xD I gave up.

http://comments.deviantart.com/1/500698883/3691774030
HA! I'm not gonna call out Scott Hartman if he says my calculations are bogus. I'd take his word on the matter over mine any day.

I'm gonna have to accept defeat there.
Tell him on how Mark Witton found out how the calculations are correct.
Actually, that was about the size of the bones in the reconstruction, it has nothing to do with the weight-calculations. ;)
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Incinerox
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Āeksiot Zaldrīzoti

Weight calculations based on dinosaur body volume is basically Hartman's thing, behind skeletal drawings.

It'd be like trying to tell Bruce Lee "your punch technique's off".
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SamtheMan
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Hi again, there are a few questions that have stumbled upon recently, hope you guys won't mind answering them.

1. What do we know of the flora found at the Ojo Alamo Formation and at the North Horn Formation? The Ojo Alamo is said to be semi-arid but I haven't heard of any specifics like grasses, trees, etc. I'm also wondering about the diet Alamosaurus would've had if it lived in an area that didn't have too many large trees.

2. Do we have any clues about the combat abilities of large hadrosaurids like Edmontosaurus (or hadrosaurids of any size for that matter)? I understand that running would've been their first choice in many situations, but I'm wondering about how individuals would fight against each other for dominance or if a predator had them in a corner.

3. What do we know about Augustynolophus? I was excited to hear about a dinosaur from California, but I haven't heard many details about it such as size, the habitat it lived in, etc.

4. Where have fossils of Smilodon fatalis been found? I know of sites in California and Florida but I'm wondering how far north this species may have gone (or the chances of finding frozen specimens).

Thanks again!
Edited by SamtheMan, Jan 14 2015, 05:11 AM.
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Furka
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Quote:
 
2. Do we have any clues about the combat abilities of large hadrosaurids like Edmontosaurus (or hadrosaurids of any size for that matter)? I understand that running would've been their first choice in many situations, but I'm wondering about how individuals would fight against each other for dominance or if a predator had them in a corner.


This old book I have mentions damaged but healed ribs which could have been caused by violent hits like kicks or such.
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Even
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2. Its bulk would have been the first and foremost weapon, especially for bigger adult hadrosaurs... Running is another option...
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babehunter1324
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Big ones like Shastungosaurus would likely had been dangerous to even the largest predators by virtue of their size alone.
Edited by babehunter1324, Jan 14 2015, 09:08 AM.
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CyborgIguana
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Indeed. Despite what documentaries would have you think, hadrosaurs were more than just walking meatballs ripe for the taking by any predator.
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