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
What do you want for the ocean?
Plesiosaurs survive 4 (44.4%)
Mosasaurs Survive 5 (55.6%)
Total Votes: 9
Alternative KT Extinctions; KT with different victims. **It is an open project**
Topic Started: Mar 24 2010, 10:36 PM (2,866 Views)
Pando
Member Avatar
Obey or I'll send you to the moon
 *  *  *  *  *  *  *  *  *  *
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.
Offline Profile Quote Post Goto Top
 
Carlos
Member Avatar
Adveho in me Lucifero
 *  *  *  *  *  *  *  *  *  *  *  *
Sounds interesting.
Lemuria:
http://s1.zetaboards.com/Conceptual_Evolution/topic/5724950/

Terra Alternativa:
http://s1.zetaboards.com/Conceptual_Evolution/forum/460637/

My Patreon:

https://www.patreon.com/Carliro

Posted Image
Offline Profile Quote Post Goto Top
 
The Dodo
Member Avatar
Prime Specimen
 *  *  *  *  *  *  *
Were there marsupials in Late Cretaceous Australia? I though they arrived afterwards.
Offline Profile Quote Post Goto Top
 
Pando
Member Avatar
Obey or I'll send you to the moon
 *  *  *  *  *  *  *  *  *  *
Oh, I think you're right, I just checked Wikipedia and the earliest Australian marsupial lived in the pliocene. But they did come from Antarctic marsupials, not Asian (although in the
long run they were Asian). So I'm going to edit Australian with Antarctic. We can be safe to assume that they traveled to Australia like they did in HE.

--EDIT--
In case you want some species to start with here is a list of Maastrichtian Fauna. Maastrichtian Fauna.

And I got a species for Alternate KT.

Enantiornith Terror Bird
Ancestor: Enantiornis
Time: Present Day
Size: 4-7 feet tall
Behavior: Solitary
Area: South American grasslands.
A flightless enantiornth. They are shaped like terror birds, except that their head looks like duck with a toothed beak. Their have 3 fingers too, and they kill with their fingers and teeth.
They were allowed to grow so big because without dinosaurs or pterosaurs in South America, the paleognaths, enantiornthes and marsupials were allowed to grow big,
and during the Great American Interchange they were able to keep their spots as Apex Predators.
Edited by Pando, Mar 25 2010, 02:46 PM.
Offline Profile Quote Post Goto Top
 
The Dodo
Member Avatar
Prime Specimen
 *  *  *  *  *  *  *
Azhdarchids would probably reach South America either flying in or in the Great American Interchange.
Just out of curiosty what was the North American predators that they competed with?
Offline Profile Quote Post Goto Top
 
Ook
Member Avatar
not a Transhuman
 *  *  *  *  *  *  *  *
i am frustrated about my future evolution projects and i started something similliar to this,but with some changes..KT extinction survive more animals than at this project...like some dinosaurs...i drawed some descendants of psittacosaurus that have got porcupine like thorns and at one species thorns changed to pangolin like armor and secondary i created false alosaurus(descendant of one avian dinosaurs)

I can give here that species ;)
Posted ImagePosted ImagePosted ImagePosted Image
Offline Profile Quote Post Goto Top
 
Pando
Member Avatar
Obey or I'll send you to the moon
 *  *  *  *  *  *  *  *  *  *
Just because the Great American Interchange was horrible in our time doesn't mean it has to as devastating in this project.

For the Azhdarchids I'm guessing that they'll develop flightlessness, and maybe there could be carnivorous ceratopsians.

For Africa I'm guessing that there would be hesperornithes, frogs, salamanders, metatherians, multituberculates, ceratopsians, and azhdarchids.


And bexi, can't wait to see your porcupine and pangolin psittacosaurs, but remember they were Asian (I like to know where everything lives).

And also can't wait to see your allosaur Enantiornith (At least I think that it could only be an enantiornith, seeing as they were the only birds in the Maastritchian and last birds till the hoatzin with fingers).

And remember, its an open project. You don't have to ask permission to post your species.
Offline Profile Quote Post Goto Top
 
Ook
Member Avatar
not a Transhuman
 *  *  *  *  *  *  *  *
yeah...propably i post dinosaurs,what i use to my new project here...that pseudotyranosaurus or dalse alosaur are descendant of dinosaurs,like velociraptor or something like that(i called that dinos bird dinos )
Posted ImagePosted ImagePosted ImagePosted Image
Offline Profile Quote Post Goto Top
 
Pando
Member Avatar
Obey or I'll send you to the moon
 *  *  *  *  *  *  *  *  *  *
Actually, non-avian theropods are extinct. But Enantiornis looks very closely to theropods, you can use them.

--EDIT-- For South America you're looking at a mammal and avian dinosaur (birds) dominated world. The only survivors there are opposums, gondwanatheres, paleognath birds,
and enantiornithes. I know it's random, just wanted to get it out.
And while talking about allotheres, I want to know if you think that they gave birth to small young or laid eggs?

--EDIT 2--

I have the sea creatures.

All the extinctions and survivors are the same as HE, except that:
sharks and nautolids are extinct
and ammonoids and belemnoids are extant, and mosasaurs or plesiosaurs are extant.

It's up to you who survives, mosasaurs or plesiosaurs. Just post on your next comment on what you want and once enough people choose mosasaurs or plesiosaurs to survive they will.

More to vote on ahead, but you can make other creatures take up the niches if you see them capable to do so.

Possible sea niches if mosasaurs are extant:
Mosasaurs have the predatory sea niche, but belemnoids or ammonoids take up some smaller ones.
Mosasaurs, bony fish, ammonoids, belemnoids, squid, or rays take up filter feeding niche.

Possible sea niches if plesiosaurs are extant:
Plesiosaurs have the dolphin niches and some predatory sea niches, but belemnoids or ammonoids and possibly some squid take up most of those niches.
Plesiosaurs, bony fish, ammonoids, belemnoids, squid, or rays take up filter feeding niches.

So vote who you want to survive along with who takes up predatory sea niches and filter feeding niches, or suggest your own.

Mine is: Plesiosaurs survive, take up dolphin niches, belemnoids rule the sea, and giant filter feeding rays are the biggest animals to ever live on Alternate KT.

--EDIT 3--
I have made a website for Alternative KT Extinctions. Here it is.
Edited by Pando, Mar 26 2010, 08:27 PM.
Offline Profile Quote Post Goto Top
 
Pando
Member Avatar
Obey or I'll send you to the moon
 *  *  *  *  *  *  *  *  *  *
Sorry for the double post but is this ok Bexi for the theropod birds?
Posted Image

And if it's possible, would you mind merging it with the Enantiornis Terror Birds and renaming it Therobirds?
Offline Profile Quote Post Goto Top
 
Ook
Member Avatar
not a Transhuman
 *  *  *  *  *  *  *  *
yeah,my version of theropod birds is very similar


plesiosaurs can survive
Edited by Ook, Mar 27 2010, 12:57 PM.
Posted ImagePosted ImagePosted ImagePosted Image
Offline Profile Quote Post Goto Top
 
Pando
Member Avatar
Obey or I'll send you to the moon
 *  *  *  *  *  *  *  *  *  *
So we're merging them?

And thats 2 for plesiosaurs, 0 for mosasaurs. I'm going to add an official poll.

--EDIT--
Would it be okay if you changed the porcupine ceratopsian from psittacosaurus to leptoceratops? Because leptoceratops lived in the Maastritchtian, but psittacosaurus
lived in the Early Cretaceous.

--EDIT 3--
The poll will end by April 5th or when there are 10 votes. Then there will be a new one on filter feeders, then who are the apex predators.
Edited by Pando, Mar 27 2010, 10:41 PM.
Offline Profile Quote Post Goto Top
 
The Dodo
Member Avatar
Prime Specimen
 *  *  *  *  *  *  *
Pandorasaurus
Mar 25 2010, 05:27 PM
Just because the Great American Interchange was horrible in our time doesn't mean it has to as devastating in this project.
I wasn't saying they would out compete the birds I was just wondering what they are.
As for allotheres, I'm not sure if they gave birth or laid eggs, if they did give birth it would be to tiny helpless young like in marsupials.
Offline Profile Quote Post Goto Top
 
Pando
Member Avatar
Obey or I'll send you to the moon
 *  *  *  *  *  *  *  *  *  *
I'm guessing that the Great American interchange could bring ceratopsians to South America and Enantiornith terror birds to North America. I'm going to guess that the Enantiorniths
are going to keep their place as predator against the azdharkids is that bipedals are good survivors. Just look at us, the theropods, the ornthipods, and the birds. The Enantiornith
terror birds have the upper hand against flightless azdharkids is their availability of the front claws.

And although North America won against South America, North America didn't win against Asia on HE. Asia killed all the creodonts and strange fauna of North America, only letting
camels, horses, and rhinos survive (but not in their home of North America).

And I know multies would give birth to small young if they gave live birth, but I think that they might of been hatched seeing that they're close relative to Monotremes. All we have
to do is find a just-born multie or a multie egg to find out.
Edited by Pando, Mar 28 2010, 03:03 AM.
Offline Profile Quote Post Goto Top
 
Carlos
Member Avatar
Adveho in me Lucifero
 *  *  *  *  *  *  *  *  *  *  *  *
Quote:
 
The Enantiornith
terror birds have the upper hand against flightless azdharkids is their availability of the front claws.


Enantiornithes didn't had their hand fingers any different from modern birds in any case. For a terror bird style predator wing claws wouldn't be very necessary

I think flightless azhdarchids would win against flightless birds because quadrupedalism allows for higher speeds and pterosaurs can develop ovovipary while birds can't.
Lemuria:
http://s1.zetaboards.com/Conceptual_Evolution/topic/5724950/

Terra Alternativa:
http://s1.zetaboards.com/Conceptual_Evolution/forum/460637/

My Patreon:

https://www.patreon.com/Carliro

Posted Image
Offline Profile Quote Post Goto Top
 
1 user reading this topic (1 Guest and 0 Anonymous)
Go to Next Page
« Previous Topic · Alternative Evolution · Next Topic »
Add Reply