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Extinct Animal Questions
Topic Started: Nov 26 2013, 10:24 PM (193,264 Views)
stargatedalek
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I'm not slow! That's just my moe!

Paleop
Sep 14 2016, 09:50 AM
I remember reading a paper about spinosaurus' sail being used for balance (making it bipedal) I have lost the location of said paper and strangely I have not bookmarked it.(unless the paper was deleted(?)
by chance do any of you know about the paper, or where to find it?
I don't think anyone ever published a formal paper on that idea. I doubt I was the first but I thought it up a few months back and discussed it briefly but eventually came to the conclusion that it didn't matter how many counterbalances it had because of the muscle atrophy in the legs. Unless we get some new information all we can say for sure is that Spinosaurus legs were not stable enough (regardless of their relative size) to support sustained or regular bipedal movement.
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YixianIsLoveYixianIsLife
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Okeanos
Sep 14 2016, 11:03 AM
YixianIsLoveYixianIsLife
Sep 14 2016, 10:35 AM
how big was Wuerhosaurus? as big as a Asiatic Elephant? or a White Rhino?
Which species are you referring to? The answer depends on that.

W. homheni is estimated at about 7 metres, and W. ordosensis about 5 metres. In comparison apparently Asian elephants on average are between 5.5 and 6.5 metres long. Good to note that these are only estimates since we don't have a complete specimen.
Okay but how tall are They?
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BossMan, Jake
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Son of God

Like he said there is no complete skeleton so we have no real way of knowing, this would just depend on the species in question. Really if you were to compare those lengths to other stegosaurs around that same size you'd probably find the height of Wuerhosaurus

So the 5 meters species maybe as tall as Kentrosaurus
While the 7 meter species maybe as tall as S. Stenops
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54godamora
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ok, what flying vertebrates could maneuver well in the dense forests of say a rainforest?
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Acinonyx Jubatus
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54godamora
Sep 15 2016, 04:39 PM
ok, what flying vertebrates could maneuver well in the dense forests of say a rainforest?
-Any bird or bat that lives in rainforests today
-Anurognathids
-Potentially some other early pterosaurs such as Campylognathoides and Dimorphodon; depends on the species
-Most bats
-Critters like Microraptor
-Basically anything with proportionally short, broad wings. Long, slender wings will do in a pinch, but only on very small creatures.
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Paleodude
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ex-Krampus

Do we have any transitional marginocephalians before the split between Ceratopsia and Pachycephalosauria?
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Acinonyx Jubatus
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Paleodude
Sep 16 2016, 11:20 AM
Do we have any transitional marginocephalians before the split between Ceratopsia and Pachycephalosauria?
Aren't Heterodontosaurs supposed to be basal Marginocephalians?
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YixianIsLoveYixianIsLife
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What if Sebecids had survived through the Miocene all the way into the Pleistocene and explored out into North America?
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heliosphoros
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Acinonyx Jubatus
Sep 15 2016, 05:50 PM
54godamora
Sep 15 2016, 04:39 PM
ok, what flying vertebrates could maneuver well in the dense forests of say a rainforest?
-Any bird or bat that lives in rainforests today
-Anurognathids
-Potentially some other early pterosaurs such as Campylognathoides and Dimorphodon; depends on the species
-Most bats
-Critters like Microraptor
-Basically anything with proportionally short, broad wings. Long, slender wings will do in a pinch, but only on very small creatures.

Volaticotherians.
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stargatedalek
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I'm not slow! That's just my moe!

YixianIsLoveYixianIsLife
Sep 16 2016, 11:51 AM
What if Sebecids had survived through the Miocene all the way into the Pleistocene and explored out into North America?
Please stop asking these questions.
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YixianIsLoveYixianIsLife
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stargatedalek
Sep 16 2016, 12:11 PM
YixianIsLoveYixianIsLife
Sep 16 2016, 11:51 AM
What if Sebecids had survived through the Miocene all the way into the Pleistocene and explored out into North America?
Please stop asking these questions.
Why?
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Imperator Furiosa
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Chaos Theory

What would be some color suggestions for Beipaiosaurus, Deinonychus, and Caudipteryx?
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heliosphoros
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Imperator Furiosa
Sep 16 2016, 12:53 PM
What would be some color suggestions for Beipaiosaurus, Deinonychus, and Caudipteryx?

We do know the latter has possible stripes on its wing feathers
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BossMan, Jake
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Son of God

@Yixian there is a place called "Speculative Evolution" that would be far more suited to questions like that not here cause simply we have no idea.

@Furiosa Maybe nothing to colorful as this would limit the use of camoflauge from predators and prey so maybe the classic dark Browns and tans. Though and beipaiosaurus it would be interesting to see a darker green like an olive or miss like color
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Acinonyx Jubatus
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heliosphoros
Sep 16 2016, 01:07 PM
Imperator Furiosa
Sep 16 2016, 12:53 PM
What would be some color suggestions for Beipaiosaurus, Deinonychus, and Caudipteryx?

We do know the latter has possible stripes on its wing feathers
And Beipiaosaurus seems to have been largely brown.

As for Deinonychus, no idea. Look to modern predators of a similar habitat and size for comparison.
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