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Different World
Topic Started: Oct 22 2008, 01:32 PM (8,484 Views)
SIngemeister
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Hive Tyrant of the Essee Swarm

I just realized this has some crurotarsians in it, like in TA. Whoops. Soz JF

Aetosauria - Elephant/Pig like forms
Phytosauria - Crocodiles
Prolacertiformes - Small scavengers, except for Shavopteryx descendants, and isolated large creatures
Rauisuchia - Big carnivores, and some gallimimid like forms
Rhynchosauria - Hippo like creatures
Trilophosauria - Ungulate like life forms
Younginiformes - Lizards
Avicephala - Bird like, chameleon like in some forms
Thalattosauria - Sea-lizards
Sphenosuchia - Most non volant arboreal carnivores

I'll get some work started on this soon. If anyoone would like to help, just ask.

Website link: http://different-world.weebly.com/index.html
Edited by SIngemeister, Sep 10 2010, 07:45 AM.
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Carlos
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Quote:
 
Is Hypsilophodonts still a group?


No, unless you wish to call all ornithopods hypsilophodonts
Lemuria:
http://s1.zetaboards.com/Conceptual_Evolution/topic/5724950/

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

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https://www.patreon.com/Carliro

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SIngemeister
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Hive Tyrant of the Essee Swarm

Thanks. By the way, some pictures are up on the website, and I welcome other artists contributions.
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The Dodo
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JohnFaa
Jan 22 2010, 01:08 PM
Quote:
 
Is Hypsilophodonts still a group?


No, unless you wish to call all ornithopods hypsilophodonts
Really, I thought they were at least still a family. Oh well.
Nice work anyway.
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SIngemeister
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Hive Tyrant of the Essee Swarm

There are going to be birds in this, or quasi-birds at least. That is my current dilemma; whether to make them actual birds, albeit ones with four teeth, wing claws and tails longer than modern birds, or bird-likes?
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The Dodo
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The albeit ones wouldn't fly so well I think, I'd think they would lose those extra features to lighten their weight for flying. They could retain if they find a use. When you say bird-like do you mean they evolved from something else?
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SIngemeister
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Hive Tyrant of the Essee Swarm

No, they evolved from dinosaurs, which did evolve in DW, but were mostly supppressed into the small light carnivore roles (think Velociraptor or Coelophysis). Thus they followed a source of evolution into feathers then flight, becoming one of the major competitors for air domination. By the end of the Cretaceous, they were winning over the declining pterosaurs, the smaller bats, and the less aerially agile Coelurosauravids.

Then K-T Pterosaurs, most Ctenosauriscids, and Prestosuchids extinct. And most quasi-birds. Only a few survived, in pockets in Greece, Egypt and China. No-one is quite sure why they suffered so badly. Most of the more adapted forms died out, leaving the more 'primitive' genuses, who exhibited traits such as teeth, small wingclaws and relatively long tails. They never fully recovered from the extinction, as bats and avicephalids rushed to fill their places.

Nowadays, they are fairly common around the world, yet have never acheived their former glory. Most of the roles are similar to ravens or frigate birds, with a few species that attack other flyers and others similar to songbirds.
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The Dodo
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So do they keep those primitive features or do some lose them?
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Holben
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By 'similar to songbirds', which characteristics do you mean?
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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SIngemeister
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Hive Tyrant of the Essee Swarm

Some would keep those primitive features, as most would use them for carrion eating or fighting off other animals, especially some Coelurosauravids who are known to attack aerial animals.

By similar to songbirds, I mean small bird niches such as Chaffinches or Blue Tits
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The Dodo
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Did any of these birds manage to produce flightless on an island? I'd imagine the ones with the primitive features would look something like non-avian theropods.
Oh yes, your bats, did they evolve from the same or similar ancestor of HE bats or did they evolve from something different?
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SIngemeister
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Hive Tyrant of the Essee Swarm

I.) Probably, just haven't got round to thiking about it yet.

2.) No, DW bats are allotherians, the dominant mammal group in DW.
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The Dodo
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Do your allotherian bats greatly differ from HE bats or are they much the same?
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SIngemeister
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Hive Tyrant of the Essee Swarm

Different skull shape, triconodont teeth, and some species show extreme sexual dimorphism in that males have rather long tails. And of course, their rather loud barks.

I am probably straying in to the bizarroid realm
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The Dodo
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A lot of triconodont where carnivorous aren't they, so would they be able to take up a lot arieal predator niches?
I don't think it's that bizzare.
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Margaret Pye
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I really like this project! Shame I don't know much about the Permian - I'd better go and study.

The skarabs are a fun original idea - the facehuggers in particular are very clever.

Why are trilobites extinct? I like trilobites.
My speculative dinosaur project. With lots of fluff, parental care and mammalian-level intelligence, and the odd sophont.
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