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Apolyton Civilization Forums > Miscellaneous > Archive > Off-Topic-Archive > Birds and Dinosaurs

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Shi Huangdi

Emperor

Pittsburgh, PA
Apr 1999
time: 00:32

24-11-2003 14:05

Birds and Dinosaurs

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Well, it's 4 AM and I can't seem to find the answer. Do any of you know whether birds and pterosaurs shared a common ancestor, and what evidence we have to that effect?

Urban Ranger

Apolyton Duke of Off-Topic

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The City State of Noosphere, CPA special envoy
May 1999
time: 13:32

24-11-2003 14:45

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It seems that birds and pterosaurs did not come from the same common ancestor.

Check this webpage for more details.

Shi Huangdi

Emperor

Pittsburgh, PA
Apr 1999
time: 00:32

24-11-2003 14:55

Help yourself to an AD-FREE life

That website lists that as a creationist claim, are you sure that's accurate?

DaShi

Prince

The Taste of Japan
Sep 2000
time: 05:32

24-11-2003 14:58

Put an end to popups!

You'd think that the dinosaurs would eat all the birds.

Urban Ranger

Apolyton Duke of Off-Topic

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The City State of Noosphere, CPA special envoy
May 1999
time: 13:32

24-11-2003 15:00

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quote:
Originally posted by Shi Huangdi
That website lists that as a creationist claim, are you sure that's accurate?

The webpage is a rebuttal of the creationist claim that there are no intermediate fossils between birds and dinosaurs, with some references at the bottom that you may find useful.

Embedded in the middle somewhere is the hypothesis that birds came from theropod dinosaurs.

St Leo

King of Scenario League

Member of the Apolyton Social Democratic Party
Jul 2005
time: 00:32

25-11-2003 05:37

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Birds and Pterosaurs are not immediately related. Avians branched off from the Saurischian division of Archosauria (think T-Rex, Velociraptor, Brachiosaurus, etc.) while Pterosaurs are a division of Archosauria in their own right.

"Dinosaurs" refers to the Saurischian and Ornithischian (think Triceratops, Stegosaurus, Parasaurolophus, etc.) branches of Archosauria.

Can you tell I used to be into palaeontology six years ago?^-^

SlowwHand

King

of The Cooler
Sep 1999
time: 23:32

25-11-2003 05:42

Suffering from ads?

http://www.enchantedlearning.com/su...aurischian.html

Odin

Prince

Biology Nerd at Minnesota State University Moorhead
Sep 2000
time: 23:32

25-11-2003 07:58

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Check out this site with lots of info about the new feathered dino discoveries:

Luis Rey's Art Gallery

These paintings are awesome.

St. Leo, Saurischia and Ornithischia didn't have seperate archosaurian ancestors, that has been defunct for over 20 years.

These are the unique features of the Dinosauria (including Aves):

- A hole in the hip bones connect the hip sockets
- 3 or more vertabrae fused to the hip bones
- Erect, not sprawling, gait
- Ankle joints simple, foreward-backward hinges

Kramerman

Prince

UT, Austin - The live music capital of the world
Jun 2002
time: 23:32

25-11-2003 08:02

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jeez, between all the OTFers, you guys know everything... i know where to turn next time i have a question

Urban Ranger

Apolyton Duke of Off-Topic

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The City State of Noosphere, CPA special envoy
May 1999
time: 13:32

25-11-2003 08:03

#10

Get a bigger avatar today!

However, "dinosaur" is also a generic, all-inclusive term.

Shi Huangdi

Emperor

Pittsburgh, PA
Apr 1999
time: 00:32

25-11-2003 08:34

#11

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Thanks guys.

St Leo

King of Scenario League

Member of the Apolyton Social Democratic Party
Jul 2005
time: 00:32

25-11-2003 09:36

#12

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quote:
Originally posted by Odin
St. Leo, Saurischia and Ornithischia didn't have seperate archosaurian ancestors, that has been defunct for over 20 years.

Well, at least I wasn't raving on about the sunken landbridge of Lemuria.^-^

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