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Notice How Theropodal Dinosaurs Resemble Crocodiles ?

 
 
Reply Thu 9 Oct, 2008 05:30 am
Notice How Theropodal Dinosaurs Resemble Crocodiles ?

Don 't thay look kinda like crocodiles on 2 legs ?

If a crocodile walked on 2 legs, woud he resemble a T- Rex ?
( granted there is a greater vertical skull dimension )





David
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Type: Discussion • Score: 0 • Views: 1,983 • Replies: 14
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rosborne979
 
  1  
Reply Thu 9 Oct, 2008 05:32 am
@OmSigDAVID,
The Theropod Dino's looked more like flightless birds to me.
OmSigDAVID
 
  1  
Reply Thu 9 Oct, 2008 05:35 am
@rosborne979,
Yeah; we can 't deny that, but still . . .
rosborne979
 
  1  
Reply Thu 9 Oct, 2008 05:46 am
@OmSigDAVID,
Deny what?
OmSigDAVID
 
  1  
Reply Thu 9 Oct, 2008 06:20 am
@rosborne979,
That the Theropod Dino's looked like flightless birds

also
rosborne979
 
  1  
Reply Thu 9 Oct, 2008 06:36 am
@OmSigDAVID,
Perhaps I'm missing your point with this thread. Where are we going with this?

OmSigDAVID
 
  1  
Reply Thu 9 Oct, 2008 09:08 am
@rosborne979,
T-Rexes looked like bipedal crocodiles,
tho it cannot be denied that thay also looked like birds.
OmSigDAVID
 
  1  
Reply Thu 9 Oct, 2008 09:09 am
and, in fact, we know that birds were descended from them
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rosborne979
 
  1  
Reply Thu 9 Oct, 2008 02:44 pm
@OmSigDAVID,
Quote:
T-Rexes looked like bipedal crocodiles,

In what way do you think they looked like crocodiles? Are you talking about skin texture, bone structure, eyes, teeth, or what?

OmSigDAVID
 
  1  
Reply Fri 10 Oct, 2008 03:38 am
@rosborne979,
Quote:

In what way do you think they looked like crocodiles?
Are you talking about skin texture, bone structure, eyes, teeth, or what?

Yes; skin texture, and skeletal structure.
If a crocodile balanced on 2 centralized legs,
he 'd look a lot like several theropodal dinos, including T-Rex.

In proportion to gross body size,
a croc' s teeth are smaller than those of a T-Rex were
in proportion to his body size. Crocs are not as active as T-Rex.
( Well, thay are now, but in all fairness to the T-Rexes. . . )
gungasnake
 
  1  
Reply Fri 10 Oct, 2008 04:05 am
They managed to sequence several of the proteins from that trex leg bone they cut in half two summers ago and they turn out to be all but identical to those of a chicken.
OmSigDAVID
 
  1  
Reply Fri 10 Oct, 2008 04:56 am
@gungasnake,
Yes.
Was it Paleontologist Jack Horner who was considering
reversing some genetics in a chicken to have him revert to a dinosaur ?
0 Replies
 
OmSigDAVID
 
  1  
Reply Fri 10 Oct, 2008 05:16 am
I wonder if we coud make an Apatosaurus ?

I 'd be fun.
( I 'll confess, I 've never tried it.)

Maybe if I post it to the questions section of this forum
0 Replies
 
rosborne979
 
  1  
Reply Fri 10 Oct, 2008 06:59 am
@OmSigDAVID,
Crocs and Theropod dino's don't seem very similar to me. Granted they both have two eyes, a nose and teeth, but other than that they seem very different.

The Theropod bone structure was completely different from a croc. Not only are their hips and spine designed for upright posture, but the density of the bone itself was different indicating a different metabolism and different foundational design (more similar to birds).

The lifestyle was different (aquatic versus terrestrial), the food was eaten differently, the hunting styles were different, and the brain size and snout configuration different.

Sorry if I'm raining on your parade, but I just don't see where you're going with all this.

OmSigDAVID
 
  1  
Reply Fri 10 Oct, 2008 03:38 pm
@rosborne979,
Quote:
Crocs and Theropod dino's don't seem very similar to me.

Well, crocs are quadrupedal,
but crocodilians (going back around 300,000,000 years)
are diapsid members of the Archosauria.
Kudos to them, for surviving the Permian Extinction.



Quote:

The Theropod bone structure was completely different from a croc.
Not only are their hips and spine designed for upright posture

Admittedly, pipedal theropods were more upright than crocs,
but thay ran in a horizontal attitude,
using their tails as counterweights.



Quote:
Sorry if I'm raining on your parade

That 's OK; crocs are waterproof.
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