Welcome Guest [Log In] [Register]
Speculative biology is simultaneously a science and form of art in which one speculates on the possibilities of life and evolution. What could the world look like if dinosaurs had never gone extinct? What could alien lifeforms look like? What kinds of plants and animals might exist in the far future? These questions and more are tackled by speculative biologists, and the Speculative Evolution welcomes all relevant ideas, inquiries, and world-building projects alike. With a member base comprising users from across the world, our community is the largest and longest-running place of gathering for speculative biologists on the web.

While unregistered users are able to browse the forum on a basic level, registering an account provides additional forum access not visible to guests as well as the ability to join in discussions and contribute yourself! Registration is free and instantaneous.

Join our community today!

Username:   Password:
Add Reply
Quadrupedal theropods
Topic Started: Apr 22 2010, 06:59 PM (5,061 Views)
Pando
Member Avatar
Obey or I'll send you to the moon
 *  *  *  *  *  *  *  *  *  *
Are/would they of been possible?

I'm asking this question because of this awesome feathered quadrupedal theropod I drew a few years ago when I just started getting interested in Spec Evo. Too bad it's gone now, I really wish that I hadn't lost it :sad:
Offline Profile Quote Post Goto Top
 
Canis Lupis
Member Avatar
Dinosaurs eat man, woman inherits the Earth.

Well, technically, there were. IF you consider sauropods theropods. They were both saurischians, so they had a similar hip structure. While I don't see why theropods would become quadropedal, it would certainly be possible in my unpaleontological opinion.

But my specialty is future evolution. When it comes to prehistory, I'm little more than a novice. I still trying to grasp the fact that almost all dinos had features or feather-like extensions.
Offline Profile Quote Post Goto Top
 
Toad of Spades
Member Avatar
Clorothod
 *  *  *  *  *  *
Sure why not? The early unspecialized theropods could produce quadrapedal forms easily. Spinosaurs could have produced a semi-quadrupedal form as well. If a kind of giant ornithomimid got even longer arms they could use their arms for walking.

Maniraptorans are a bit tricker because of their wrists.
Sorry Link, I don't give credit. Come back when you're a little...MMMMMM...Richer.

Bread is an animal and humans are %90 aluminum.
Offline Profile Quote Post Goto Top
 
Kamidio
Member Avatar
The Game Master of the SSU:NC
 *  *  *  *  *  *  *  *  *  *  *  *
You can ask me anything about prehistory. So I can help.
SSU:NC - Finding a new home.
Posted Image
Quotes
WAA
Offline Profile Quote Post Goto Top
 
Margaret Pye
Member Avatar
Adult
 *  *  *  *  *  *
Sauropods are not, by any stretch of the imagination, theropods.

Other points stand, though.
My speculative dinosaur project. With lots of fluff, parental care and mammalian-level intelligence, and the odd sophont.
Offline Profile Quote Post Goto Top
 
KayKay
Adult
 *  *  *  *  *  *
Didn't early quadrupedal dinosaurs stem from theropod-like early dinosaurs?

Not theropods exactly, but wasn't the hip structure quite similar?
Edited by KayKay, Apr 23 2010, 09:18 AM.
Offline Profile Quote Post Goto Top
 
Venatosaurus
Member Avatar
HAUS OF SPEC
 *  *  *  *  *  *  *  *  *
I think that yes, it is possible. Under certain circumstances, they could have dropped to all fours. I like to thin that Therizinosaurs , if presented the opprotunity, would have done so, especially if they became larger, fatter, and stranger...imagine strange 'qurry' beaked chalicothere type beasts, or huge woolly 'ur-sauropods' !



Offline Profile Quote Post Goto Top
 
MitchBeard
Member Avatar
proud gondwanan
 *  *  *  *  *
that would have been awesome. chalicotheres rock my socks.
totally gonna have to draw that concept and probably end up sticking it up here.
Probably look weird with the spindly theriznosaur arms thou, but oh well.
Edited by MitchBeard, Apr 23 2010, 11:35 AM.
Offline Profile Quote Post Goto Top
 
Holben
Member Avatar
Rumbo a la Victoria

I often see renditions of spinosaurs on their front limbs. It would only really be useful in larger theropods, but they need the sprinting ability two legs gives.
Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea.

"It is the old wound my king. It has never healed."
Offline Profile Quote Post Goto Top
 
Black_Panther
Member Avatar
Adolescent
 *  *  *  *  *
Venatosaurus
Apr 23 2010, 10:45 AM
I think that yes, it is possible. Under certain circumstances, they could have dropped to all fours. I like to thin that Therizinosaurs , if presented the opprotunity, would have done so, especially if they became larger, fatter, and stranger...imagine strange 'qurry' beaked chalicothere type beasts, or huge woolly 'ur-sauropods' !
Now, that's something i want to see.
Must work on quadrupedal therizinosaurs for my awesome project. :geek:
http://spidervenom022.deviantart.com

Go in there for some odd stuff that could make you puke, and ask for some free sketches. :)
Offline Profile Quote Post Goto Top
 
Ook
Member Avatar
not a Transhuman
 *  *  *  *  *  *  *  *
Posted Image
Posted ImagePosted ImagePosted ImagePosted Image
Offline Profile Quote Post Goto Top
 
Holben
Member Avatar
Rumbo a la Victoria

What's up with the no tail?
Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea.

"It is the old wound my king. It has never healed."
Offline Profile Quote Post Goto Top
 
Ook
Member Avatar
not a Transhuman
 *  *  *  *  *  *  *  *
i found it at deviantart...its no alternative evo,its completely fantasy
Posted ImagePosted ImagePosted ImagePosted Image
Offline Profile Quote Post Goto Top
 
Holben
Member Avatar
Rumbo a la Victoria

Well that explains it. How is it described?
Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea.

"It is the old wound my king. It has never healed."
Offline Profile Quote Post Goto Top
 
Venatosaurus
Member Avatar
HAUS OF SPEC
 *  *  *  *  *  *  *  *  *
Actually I've seen that, but it's actually a flightless bird ;) Amazing piece though !



Offline Profile Quote Post Goto Top
 
1 user reading this topic (1 Guest and 0 Anonymous)
ZetaBoards - Free Forum Hosting
Fully Featured & Customizable Free Forums
Learn More · Register Now
Go to Next Page
« Previous Topic · Alternative Evolution · Next Topic »
Add Reply