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Definitely NOT Dilophosaurus AKA LEGOCRAFTBOY - code by ViralCyclopes and skin by GameVideosForLife

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LEGOCRAFTBOY

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14 comments

  1. rnixon73
    rnixon73
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    Amazing skin, but isn't there still some debate as to whether or not it had feathery integument?
    1. LEGOCRAFTBOY
      LEGOCRAFTBOY
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      Possibly, but it’s under the weight limit set by yutyrannus, lived in a potentially slightly colder climate than yuty, and was fairly basal, so since feathers are ancestral to dinosauria as a whole, it most likely had some sort of feathery integument.
    2. rnixon73
      rnixon73
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      Huh. Well, you've got my endorsement, you've done my favorite dinosaur justice.
    3. Kotwuerstchen
      Kotwuerstchen
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      Very debateable. It's a primitive theropod, we only have feathers of derived theropods.
    4. LEGOCRAFTBOY
      LEGOCRAFTBOY
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      pterosaurs have feathers too, according to phylogenetic bracketing chances are it's basal to both groups.
    5. Kotwuerstchen
      Kotwuerstchen
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      Pterosaurs have something called pycnofibers and we're not even sure if they are the same structures that dinosaurs have. We've seen pycnofibers in ornithiscians and

      Unless we have more evidence to suggest that basal dinosaurs or basal archosaurs had pycnofibers, we simply can't be sure.
    6. LEGOCRAFTBOY
      LEGOCRAFTBOY
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      Pycnofibers is not a scientific term, the filaments that pterosaurs have are structurally identical to early feathers, same with ornithischians. They are feathers. There is no question as to whether this is true. The only question now is how early these feathers evolved, was it right before the dinosaur pterosaur split or was it much earlier?
    7. Kotwuerstchen
      Kotwuerstchen
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      That's simply not true. 😂

      There's still a debate going on if the structures on pterosaurs and dinosaurs are the same. Like what are you talking about? The debate is still going on strong. There's plenty of papers arguing for and then lots of paleontologists disagreeing with them. There's literally zero consensus.

      As for ornithiscians, the fibers of psittacosaurus for instance are definitely not feathers and evolved independently. They're modified scales not unlike feathers.

      So there's one definite example of convergent evolution right there. It's most definitely possible that this is the case with pterosaurs and other dinosaur lineages aswell.

      And I don't get it. Why put feathers on an early theropod we have zero evidence of and not put feathers on an ankylosaurid or a hadrosaurid then? If people say every archosaur has feathers, then just smash them onto everything.
    8. LEGOCRAFTBOY
      LEGOCRAFTBOY
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      I don’t have time to go fully in depth but w few points I wanted to touch on. Yes, psittacosaurus quills are not the same structure as feathers, that is obvious. No one has ever claimed that they are the same thing so this really just feels like you trying to distract from the point. As for why I put feathers on Cryolophosaurus and not hadrosaurs or ankylosaurs, the biggest difference is size. Currently the largest confirmed feathered species found is yutyrannus, and most hadrosaurs are well above that limit, not to mention we have several skin impressions of hadrosaurs that lack filaments. It’s interesting to note however that some early relatives of hadrosaurs (when I say early I mean outside of ornithopoda proper) do actually have evidence of feathers. As for ankylosaurs, we have several very well preserved specimens from both nodosaurs and ankylosaurs proper that don’t show feathers, so it’s fair to assume the group lacked them. (The same goes for marginocephalians.) Another piece of evidence I was recently made aware of, when in their embryonic state, crocodilians actually have proteins found exclusively in bird feathers present in their bodies, but they lose this as they mature. While it’s true we have yet to find definitive evidence of them being the same structure, Occam’s razor definitely suggests that they are. (Occam’s razor basically means that the simplest plausible explanation is probably right, in this case one single ancestor basal to avemetatarsalia evolving feathers seems more likely than at least 3 different groups evolving them simultaneously.) To address your last point, we don’t put feathers on everything, we put feathers on things that could have reasonably had them given the environmental and biological constraints we know would have limited them, as well as any evidence that some groups didn’t have them.
    9. LEGOCRAFTBOY
      LEGOCRAFTBOY
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      To summarize, the reason we don’t go feathering things willy-nilly is because we know that some of these groups weren’t feathered thanks to both skin impressions and ecological constraints.
  2. GushyGwar
    GushyGwar
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    fur pilled
    1. LEGOCRAFTBOY
      LEGOCRAFTBOY
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      BASED
  3. NetRaptor
    NetRaptor
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    Simply delicious!
    1. LEGOCRAFTBOY
      LEGOCRAFTBOY
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      Thank you very much!