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| Extinct Animal Questions | |
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| Topic Started: Nov 26 2013, 10:24 PM (193,246 Views) | |
| babehunter1324 | Feb 19 2017, 05:18 AM Post #3721 |
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![]() ![]() Feathers can totally serve the same function than the hairy eyelashes in mammals. IMO they were probably pretty widespread at least in Avetheropoda. Edited by babehunter1324, Feb 19 2017, 05:19 AM.
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| BossAggron | Feb 19 2017, 06:28 AM Post #3722 |
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Formerly Dilophoraptor
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Y'all realize he said Eyeshine right? Anyways, as both birds (which are Dinosaurs) and Crocodiles (closest living cousins of Dinosaurs) exhibit eyeshine, so yes, we would expect there to be dinosaurs (particularly those active at night) that have eyeshine. Edited by BossAggron, Feb 19 2017, 06:28 AM.
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| 54godamora | Feb 19 2017, 11:32 AM Post #3723 |
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so say if velociraptors had yellow eyes what eyeshine color would that be? |
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| Jannick | Feb 19 2017, 11:54 AM Post #3724 |
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Papua merdeka!
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Eyeshine is not really related to the color of the iris, since it's basically light bouncing off of the tapetum lucidum behind the retina and shining back through the pupil (kind of the same thing that causes the red eye effect with flash photography). The exact color of eyeshine varies with the color of the light that the eye is exposed to and the angle at which it is seen, which is most often somewhere between yellow and cyan when seen head-on. |
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| Incinerox | Feb 20 2017, 09:10 AM Post #3725 |
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Āeksiot Zaldrīzoti
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![]() ![]() ![]() ![]() Birds seem to have red eyeshine. ![]() ![]() ![]() ![]() ![]() ![]() So do crocs. So I would imagine that reddish eyeshine is the norm for non-avian dinosaurs. |
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| Furka | Mar 1 2017, 06:26 AM Post #3726 |
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Are there any "modern-looking" sea turtles known from the same environment as Liopleurodon, Ophtalmosaurus and the other WWD fauna ? |
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| stargatedalek | Mar 1 2017, 10:24 AM Post #3727 |
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I'm not slow! That's just my moe!
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You mean "scuted" marine turtles? They're actually the originals you know ![]() I don't think there are any marine turtles that old, all I can find are freshwater species. |
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| BossMan, Jake | Mar 1 2017, 11:03 AM Post #3728 |
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Son of God
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Sea Turtles didn't evolve it seems until the Mid Cretaceous from what I'm seeing |
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| 54godamora | Mar 5 2017, 10:42 PM Post #3729 |
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what extinct animals lived in java during the pleistocene |
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| Cowrie | Mar 6 2017, 07:41 PM Post #3730 |
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Is there any knowledge as to what the skin of pachypleurosaurs would have been like? I mean, the closest living relatives would be turtles and tortoises, and you see a variety of scale textures in them and even smooth scaleless skin. |
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| BossMan, Jake | Mar 7 2017, 12:09 AM Post #3731 |
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Son of God
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Since Pachycephalosaurus is a marginocephalian like the ceratopsians I would say they had somewhat similar skin as a holdover to their primative days, that's what I like to believe at least so don't quote me in that |
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| magpiealamode | Mar 7 2017, 12:35 AM Post #3732 |
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No good hero is a one-trick phony.
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I think it would behoove you to read a little more carefully Pachypleurosaurs are a group of marine reptiles tangentially, if at all related to dinosaurs. I have not done any reading, but I figure they would have had a skin type similar to mosasaurs, which if I remember correctly is small pebbly scales. Tough to say though, I'll do research and get back if no one else responds. |
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| BossMan, Jake | Mar 7 2017, 01:51 AM Post #3733 |
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Son of God
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Damn I suck...I read that to fast and my mind just jumped right into another word XD my apologies Alright then, what are the largest dinosaurs from each continent from reliable material? I know they will all be Sauropods obviously |
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| Acinonyx Jubatus | Mar 7 2017, 02:36 PM Post #3734 |
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I AM THE UNSHRINKWRAPPER!
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North America: Alamosaurus, hands down. South America: Which one are they currently saying was the biggest? Take your pick; Argentinosaurus, Puertasaurus, Dreadnoughtus, et cetera. Europe: Probably Turiasaurus. Asia: I can't find any info, but Mamenchisaurus seems like a good bet to me. Africa: Paralititan. Australia: Rhoetosaurus, Diamantinasaurus and Winototitan all seem to have been around the 15-meter mark. There is the Broome Titanosaur, but it's only known from footprints. Antarctica: Glacialisaurus at 7.5 meters or so. |
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| BossAggron | Mar 7 2017, 10:43 PM Post #3735 |
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Formerly Dilophoraptor
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On North America Barosaurus (If that giant is a Barosaurus) might be the longest if that's what you mean by largest |
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