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Alternative KT Extinctions; KT with different victims. **It is an open project**
Topic Started: Mar 24 2010, 10:36 PM (2,869 Views)
Pando
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In this project everything goes along the same as HE until KT (I know its a popular one). It all goes along the same as it does on Earth, except that there are different victims and survivors.

I will do the sea creatures in a few days.

Here are the extinct creatures:
All anapsids (it includes Testudines).
Squamates.
Sphenodonts.
Choristoderans.
Crocodylmorpha.
Neognath birds (Modern birds).
Non-avian theropods.
Sauropods.
Ornthipods.
Ankylosaurs.
Monotremes.
Eutherian (Placental) Mammals.
Gymnophions (Caecilians (Amphibians)).

The surviving animals (To the right is where they are found after KT, but spreading does occur later on):
Azhdarchids (NORTH AMERICA, ASIA, EUROPE, AFRICA),
Ceratopsians (NORTH AMERICA, ASIA),
Pachycephalosaurs (They pwn, wonder why nobody knows of them) (NORTH AMERICA),
Ornithocheirods (Used to live nearly everywhere, but by KT restricted to EUROPE),
Pterodantids (NORTH AMERICA),
Opossums (SOUTH AMERICA),
Late Cretaceous Antarctic Marsupials (ANTARCTICA),
Stagodontid Marsupials (if you don't know what it is, watch this and pause at 0:40) (NORTH AMERICA),
Asiadelphere Metatheres (ASIA),
Deltatheroid Metatheres (NORTH AMERICA, ASIA),
Enantiornithes (NORTH AMERICA, SOUTH AMERICA, EUROPE, ASIA),
Hesperornithes (NORTH AMERICA, EUROPE, ASIA),
Paleognaths (SOUTH AMERICA, AUSTRALIA),
Cimolodont Multituberculates (NORTH AMERICA, ASIA, EUROPE),
Gonwandatheres (Semi-aquatic burrowing beaver-like allotheres) (SOUTH AMERICA, AUSTRALIA),
Salamanders (NEAR-WORLDWIDE),
and Frogs (NEAR-WORLDWIDE).

**NOTE** I'm not counting paleognaths and gondwanatheres in Antarctica because they will die off in Antarctica with no survivors by present day. With the marsupials they will enter Australia like present day after KT happens.

KT world:
Posted Image

This project is OPEN, so anyone can contribute. I would like to focus on Present day and 50 million years future.

Species format:

Name
Ancestor: x
Time: Present day or 50 MYF.
Size: x
Behavior: Solitary or group behavior.
Area: The area of the continent that they live in.
Then go on with the description, and if you have one at the bottom post a picture of it.

Present day map (just in case you need it):
Posted Image

50 million years future (note, it is actually a link, not a picture. Just click on it to see the map, but don't take any animals on that website seriously).
50MYF

Again, this project is open, so I would really like contributions.
Edited by Pando, Mar 26 2010, 12:35 AM.
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Holben
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Rumbo a la Victoria

So we can keep some phosphuracids, probably ones like Titanis.
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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The Dodo
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Pandorasaurus
Apr 7 2010, 09:20 PM
And when humans came they took that niche, and killed the terror birds. But no humans in alternative KT.
Actually, they went extinct before humans arrived.
It doesn't look like they were scavengers either, they would of gone for some dead meat but they were quite fast and easily capable of bringing down prey.
Also, what takes the Sparssaradonts niche in this South America?
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Holben
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The Dodo
Apr 8 2010, 06:39 AM
Pandorasaurus
Apr 7 2010, 09:20 PM
And when humans came they took that niche, and killed the terror birds. But no humans in alternative KT.
Actually, they went extinct before humans arrived.
It doesn't look like they were scavengers either, they would of gone for some dead meat but they were quite fast and easily capable of bringing down prey.
Yeah- humans reached the Americas sometime between 30,000 and 11,000 years ago, from Asia. Terror birds had been extinct for several thousand years- 90 thousand, i think.

They definitely did take down some prey in addition, prevalence unknown. But the fact that some found niches northwards means they can't have been too bad.
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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Pando
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I'm thinking that the sparssaradont niche gets taken by giant saber-toothed (saber teeth is optional) metatherian opossums like in HE.

And holben, we can't keep phosphuracids. The niche is taken by therobirds and they are neognaths, which perished in KT.
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Ook
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what is HE?

also sprassodonts are metatherians,but i think they could be in this project,but this is alternative evolution,they can never evolved into that cats and hyaenas forms,but i think they will by dominate marsupials of south america...also platypus can live in south america
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Pando
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HE stands for Home Earth

And platypi cannot live in South America because monotremes and eutherians are extinct on Alternative KT.

And weren't sparsarssaradonts non-marsupial metatherians evolved from opossums? Because then they can evolve as they did on HE, but saber teeth are optional.
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Ook
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there are big numebr of sprassodonta that take over niches from smallest carnivores to size of bears.Saber toothed was only several members of genus thylacosmilus
see http://en.wikipedia.org/wiki/Metatherian
http://en.wikipedia.org/wiki/Sparassodonta there are lot of families,but lot of people think that they was only thylacosmilus
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Holben
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Rumbo a la Victoria

Pandorasaurus
Apr 8 2010, 10:22 AM
And holben, we can't keep phosphuracids. The niche is taken by therobirds and they are neognaths, which perished in KT.
Ah yeah- i'm not too happy now.

Therobird diversification in order?
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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Pando
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They came from enantiornis. They survived KT, and being one of the biggest, if not the biggest terrestrial carnivore in South America they quickly diversified into theropod-like forms.
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Holben
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Rumbo a la Victoria

Have you got any list of species or groups within the group?
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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Pando
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no, I usually do groups first.
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Ook
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:D i usually do first species and after that i do group
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T.rex09
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"I think flightless azhdarchids would win against flightless birds because quadrupedalism allows for higher speeds and pterosaurs can develop ovovipary while birds can't."

I'll have to agree with JohnFa on this one.
"Church if I die you can have my orange juice."-Red vs Blue
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Pando
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How about South America never attached to North America, but some creatures like ceratopsians and pachycephalosaurs crossed by island hopping?
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Ook
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island hopping triceratops :D...no,there can be flightless azblablabla,ankylosaurs and new clades of herb dinos,thatare descendants of some maniraptorans...+ many metatherians and Gonwandatheres
Edited by Ook, Apr 18 2010, 02:42 AM.
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