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alien-like earth; alternative K-T:200milion years after
Topic Started: Apr 21 2010, 11:35 AM (7,158 Views)
janlor
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Adolescent
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what if the bolid that hited earth during credacerous will be 12000 meters

the extinct spicies are
-all hemichorodates
-all flower plants(with few exceptions)
-all dinosaurs (with exception of bambiraptor)
-all pterosaurs
-all tailless amphibians
-all rays
-all rays
-all mamals (with exceptions of gondwanatheria,marsupials and eutheria)
-all squamates(with few exceptions)
-all birds (with exceptions of ichtiornis)
-all arachnids(with exceptions of scorpions and spiders)
-all crocodiles

sow wath you think (we speculkate about life on earth 200 milions after this K-T)
Edited by janlor, Apr 21 2010, 12:04 PM.
my projects:

Romeo 5
http://s1.zetaboards.com/Conceptual_Evolution/topic/3108148/1/ 2 creatures presented!

alien-like earth
http://s1.zetaboards.com/Conceptual_Evolution/topic/3223527/1/

The New Humans
http://s1.zetaboards.com/Conceptual_Evolution/topic/3253024/1/

Feliearth
Feliearth

Few jokes:
addition to fashion: fasism
why two Stiupid SNAIADIAN CHILDS WAS KISSING Because they observed they pet kahydrons and wants to have baby
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Practically Uninformed
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Hm. Outright fusion on that scale could take a while in a bird. After all, penguins were a similar group of birds who followed such a path, and no fusion has occured in their kind.

On another note, if Icthyornis is in a world where vertebrates are so few that echinoderms conquer the world, wouldn't it diversify into the dominant land form instead of merely retreating to the ocean?
You may be a king or a lil' street sweeper, but sooner or later, you'll dance with the reaper!
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Zorku
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I'm reading those posts in a Jamaican accent and I'm in a decent mood instead of a rage mood.

Did the starfish vascular system require the uptake of water at the actual area of movement or did it kind of do uptake over near the core? Seems like you could get away with a sort of diaphragm that let them shift pressure down an arm based on whether a section could balloon up or not if it is the latter. Heavy modifications of course but if you kill a nonsensical selection of animals to piss off forum members you might as well give them some kind of ridiculous luck.
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lemming98
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Bexi, not cool. This isn't to attack people.
I think we shoudl just look at different aspects of this alien earth rather that just the plausibility of these tripeds.

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Pando
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Um.. there is no reason an animal perfectly adapted to flying would leave the ground, especially when it's the only flying chordate left on Earth. The only other thing I can see it turning into are aquatic ground birds, but they never fused legs. And I've got a list of aquatic birds:

Penguins
Great Auks
Hesperornithes
Aquatic waterfowl like flightless ducks
Flightless Cormorant

And then here is a list of flightless birds. NONE ever fused legs.

And then the problem of having their wings become legs. All flightless birds stayed bipeds.
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Zorku
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Pandorasaurus
Apr 23 2010, 08:46 PM
Um.. there is no reason an animal perfectly adapted to flying would leave the ground, especially when it's the only flying chordate left on Earth. The only other thing I can see it turning into are aquatic ground birds, but they never fused legs. And I've got a list of aquatic birds:

Penguins
Great Auks
Hesperornithes
Aquatic waterfowl like flightless ducks
Flightless Cormorant

And then here is a list of flightless birds. NONE ever fused legs.

And then the problem of having their wings become legs. All flightless birds stayed bipeds.
Maybe they are playing the floor is lava.
For ten million years.
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Pando
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Um... are you saying that for 10 million years the land is covered in lava? You are talking about COMPLETE extinction of life on land then. Not to mention how it is impossible (when the KT asteroid hit the land wasn't covered in lava, just fire).
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KayKay
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I'm pretty sure Zorku's response was a joke. :) Pandorasaurus you're getting yourself so tense, loosen up a little.
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Holben
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Rumbo a la Victoria

KayKay
Apr 24 2010, 02:26 AM
I'm pretty sure Zorku's response was a joke. :) Pandorasaurus you're getting yourself so tense, loosen up a little.
Tensile strength of a Pandorasurus suddenly jumped into my head. :slant:

It wasn't even really covered in fire, it was just burny things that burnt and they soon got put out. It did rain embers for a while, and a lot of ash fell though. Mm. Plant nutrients.

Wings are very weak and fragile. If you grab a bird's wing, it will rip and they won';t be able to fly. So how could they go over rocks and rubbish?
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."
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janlor
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the wings changed into strong padles and than transformed into legs
my projects:

Romeo 5
http://s1.zetaboards.com/Conceptual_Evolution/topic/3108148/1/ 2 creatures presented!

alien-like earth
http://s1.zetaboards.com/Conceptual_Evolution/topic/3223527/1/

The New Humans
http://s1.zetaboards.com/Conceptual_Evolution/topic/3253024/1/

Feliearth
Feliearth

Few jokes:
addition to fashion: fasism
why two Stiupid SNAIADIAN CHILDS WAS KISSING Because they observed they pet kahydrons and wants to have baby
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Pando
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Obey or I'll send you to the moon
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:slant: You mean flippers? If they evolve into flippers (which they probably won't you have the ENTIRE eutherian group that will do so before Icthyornis) they won't become legs. And even if they were to become land based after becoming aquatic (why would they?) the chance of growing fingers are very rare. After all, birds have lost all but 1 finger.

And then there's the back legs. If the wings were to evolve into legs, then the back legs WON'T fuse. In fact, the chance (very rare, I estimate 1 in 50 trillion, at least) decreases with them going back on land, because quadrupedal motion is better than tripodal. If the legs were to fuse, they'd just die off.

And if they were to become more aquatic and the legs fused like sea lions, they WON'T EVER go back on land.
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janlor
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bids have two fingers one big and one microscopic
my projects:

Romeo 5
http://s1.zetaboards.com/Conceptual_Evolution/topic/3108148/1/ 2 creatures presented!

alien-like earth
http://s1.zetaboards.com/Conceptual_Evolution/topic/3223527/1/

The New Humans
http://s1.zetaboards.com/Conceptual_Evolution/topic/3253024/1/

Feliearth
Feliearth

Few jokes:
addition to fashion: fasism
why two Stiupid SNAIADIAN CHILDS WAS KISSING Because they observed they pet kahydrons and wants to have baby
Offline Profile Quote Post Goto Top
 
Pando
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Obey or I'll send you to the moon
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The microscopic one won't get any better than dewclaws. It's too tiny.

And did you read my entire argument on why they can't exist?
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janlor
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stop talking about tripods, now talk about legless gondwanatheria( i writed it good ?) its moving not side-by-side but up-and-down like most of mamals,also its chest and botoms are combined with head into one skull
my projects:

Romeo 5
http://s1.zetaboards.com/Conceptual_Evolution/topic/3108148/1/ 2 creatures presented!

alien-like earth
http://s1.zetaboards.com/Conceptual_Evolution/topic/3223527/1/

The New Humans
http://s1.zetaboards.com/Conceptual_Evolution/topic/3253024/1/

Feliearth
Feliearth

Few jokes:
addition to fashion: fasism
why two Stiupid SNAIADIAN CHILDS WAS KISSING Because they observed they pet kahydrons and wants to have baby
Offline Profile Quote Post Goto Top
 
Pando
Member Avatar
Obey or I'll send you to the moon
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You never said to move out of the icthyornis.

How does it move up-down? I know how it works for caterpillars, but it's slow and they have legs. And what do you mean that the chest and butt combined? If they do then it'll just be a head and tail. And what about the private parts?
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janlor
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Adolescent
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you meant this recuired for reprotuktion ? they are under a skull
my projects:

Romeo 5
http://s1.zetaboards.com/Conceptual_Evolution/topic/3108148/1/ 2 creatures presented!

alien-like earth
http://s1.zetaboards.com/Conceptual_Evolution/topic/3223527/1/

The New Humans
http://s1.zetaboards.com/Conceptual_Evolution/topic/3253024/1/

Feliearth
Feliearth

Few jokes:
addition to fashion: fasism
why two Stiupid SNAIADIAN CHILDS WAS KISSING Because they observed they pet kahydrons and wants to have baby
Offline Profile Quote Post Goto Top
 
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