Marching Dinosaurs - Animated Size Comparison

  1. Shuvuuia
  2. Sinosauropteryx
  3. Compsognathus
  4. Microraptor
  5. Caudipteryx
  6. Microceratus
  7. Hypsilophodon
  8. Ornitholestes
  9. Masiakasaurus
  10. Psittacosaurus
  11. Velociraptor
  12. Laeallynasaura
  13. Stegoceras
  14. Troodon
  15. Oviraptor
  16. Protoceratops
  17. Dromaeosaurus
  18. Stygimoloch
  19. Coelophysis
  20. Dracorex
  21. Dryosaurus
  22. Deinonychus
  23. Scelidosaurus
  24. Herrerasaurus
  25. Ornithomimus
  26. Kentrosaurus
  27. Gigantspinosaurus
  28. Pachycephalosaurus
  29. Dilophosaurus
  30. Gastonia
  31. Concavenator
  32. Utahraptor
  33. Euoplocephalus
  34. Sauropelta
  35. Miragaia
  36. Chasmosaurus
  37. Magyarosaurus
  38. Einiosaurus
  39. Camptosaurus
  40. Diabloceratops
  41. Styracosaurus
  42. Cryolophosaurus
  43. Tuojiangosaurus
  44. Ceratosaurus
  45. Edmontonia
  46. Plateosaurus
  47. Ankylosaurus
  48. Baryonyx
  49. Wuerhosaurus
  50. Gallimimus
  51. Neovenator
  52. Pachyrhinosaurus
  53. Carnotaurus
  54. Ichthyovenator
  55. Maiasaura
  56. Iguanodon
  57. Dacentrurus
  58. Gigantoraptor
  59. Gorgosaurus
  60. Melanorosaurus
  61. Majungasaurus
  62. Ouranosaurus
  63. Stegosaurus
  64. Olorotitan
  65. Triceratops
  66. Deinocheirus
  67. Corythosaurus
  68. Amargasaurus
  69. Allosaurus
  70. Parasaurolophus
  71. Therizinosaurus
  72. Albertosaurus
  73. Suchomimus
  74. Edmontosaurus
  75. Saurophaganax
  76. Acrocanthosaurus
  77. Lambeosaurus
  78. Tyrannosaurus
  79. Carcharodontosaurus
  80. Giganotosaurus
  81. Shantungosaurus
  82. Spinosaurus
  83. Cetiosaurus
  84. Diplodocus
  85. Camarasaurus
  86. Apatosaurus
  87. Giraffatitan
  88. Alamosaurus
  89. Dreadnoughtus
  90. Brachiosaurus
  91. Sauroposeidon
  92. Mamenchisaurus
  93. Puertasaurus
  94. Argentinosaurus

Corruption by Kevin McLeoud

Feathers could definitely use some puffing up and work, but overall it’s entertaining and informative

The best and worst dinosaur names

Because I was thinking about it while trapped in traffic, here’s a totally objective list of cool and not-so-cool dinosaur (and assorted other prehistoric animal) names.


The Classics: I’d imagine that part of the reason these are so well known is because they sound awesome and/or mean awesome things.

Tyrannosaurus rex (Tyrant lizard king)

Triceratops (Three horned face)

Deinonychus (Terrible claw)

Velociraptor (Speedy thief) 

Archaeopteryx (Ancient feather)

“Brontosaurus” (Thunder lizard)

They roll off your tongue and into your heart: Slightly deeper cuts that also have a nice ring to them.

Suchomimus (Crocodile mimic)

Suuwassea (First spring thunder)

Mojoceratops (Mojo horned face)

Atrociraptor (Atrocity thief)

Euoplocephalus (Well armored head)

Stygimolch (River Styx demon)

Dracopelta (Dragon shield)

Brontotherium (Thunder beast)

Caudipteryx (Tail feather)

Quetzalcoatlus (For Aztec god Quetzalcoatl)

Anything ending in “venator”:

Sinovenator (Chinese hunter)

Neovenator (New hunter)

Microvenator (Tiny hunter)

Afrovenator (African hunter)


Names that should not be: These super-vague names were given to fragmentary or largely non-diagnostic remains, and it shows.

Allosaurus (Other lizard)

Apatosaurus (Mystery lizard)

Dyslocosaurus (Hard-to-place lizard)

Corporate names: Named for the company that funded the research, apparently. Or somebody was gaming for free airline tickets. Either way, these seem kind of cheap.

Quantassaurus (Quantas Airways lizard)

Atlascopcosaurus (Atlas Copco lizard)

Zero-effort names: You’d think they’d be a little more excited about naming a dinosaur.

Gasosaurus (Gas lizard)

Drinker (for Edward Drinker Cope)

Irritator (Irritator)

Megapnosaurus (Big dead lizard)

Awesomebro names: Unsubtle names possibly named by six year olds.

Raptorex (Thief king)

Megaraptor (Big thief)

Gigantoraptor (Giant thief)

Tyrannotitan (Tyrant titan)

Consonant mush names: These are rough to pronounce without considerable effort.

Gigantspinosaurus (Giant spine lizard)

Futalognkosaurus (Giant chief lizard)

Troll names: I have to wonder if these were done on purpose. No pity or remorse for the poor folks who have to say these out loud.

Pantydraco (Spring/well dragon)

Fukuiraptor (Fukui thief) 

Vagaceratops (Wandering horned face)

hattahightopp  asked:

This is probably a stupid question, but did large herbivores like Triceratops and Diplodicus have feathers? I can accept the bird-like dinos with feathers, but I'm having a really hard time imagining feathered ceratopsians.


It’s all about phylogenetic bracketing (looking at the possible distribution of a trait based on the trait’s prevalence in relatives). 

So feathers are an ancestral trait in Dinosauria - making it more likely that the more basal (meaning: more closely related to the most recent common ancestor of all dinosaurs) dinosaurs all had some sort of protofeather covering. 

However, some later groups did lose their feathers. We know this because we do have scaly skin from some dinosaurs - hadrosaurs, titanosaurs, Carnotaurus, etc. 

So while all dinosaurs (that we haven’t found scale impressions of) could have had feathers, for some it’s much more likely than others.  

So then, for the more derived (ie, less closely related to the ancestral dinosaur) dinosaurs that aren’t theropods - who got more fluffy as they evolved - we have to do some guesswork, based on scaly and feathered fossil tracking. 

For ceratopsians, one fairly basal form - Psittacosaurus - was found with quills on the tail; though it was scaly everywhere else on the body. Still, it was derived for a dinosaur. However, there aren’t any other ceratopsians found with quill impressions - it’s just Psittacosaurus. Meanwhile, Triceratops, Chasmosaurus, and Centrosaurus - all later ceratopsians - have been found with scales. So, it’s reasonable to suppose that early members of the group - such as Leptoceratops - may have had similar quills as Psittacosaurus, it’s highly unlikely that the later forms did as well (though, the skin impression in these animals is not from the tail itself, but other portions of the body - so putting quills on their tails, while unlikely, is not necessarily incorrect). 

Now, for sauropods, titanosaurus (the most derived group) have been found with scaly skin impressions, making it unlikely that they had feathers. Other genera of saurpods have also been found with scales on portions of their body, such as Diplodocus, Mamenchisaurus, and Camarosaurus, indicating that in these later forms of Sauropodomorpha, any of the ancestral fluff was probably lost, at least in adulthood. 

Scales have also been found in adults of Thyreophorans (stegosaurs and ankylosaurs) - specifically, Stegosaurus, Hesperosaurus, Gigantspinosaurus, and Scelidosaurus, among others, indicating that these lost the floof as well. 

Hadrosaurs are probably the best known to be scaly of all of these - many scale impressions have been found throughout the group over most of the body, indicating that they lost any protofeathers altogether in adulthood. Same goes for the titanosaurus. 

However, things to note: 

- For a lot of these scale impressions, we only have a limited portion of the body known - for others we have a lot - so while all of these animals have confirmed scales, some may still have had small vestigial tufts, sort of like elephant fur. I say this because feathers don’t fossilize very well at all - they’re delicate structures that typically decompose before they have a chance to do so, meaning that we we are most likely underestimating how many things had protofeathers. However, for some groups this is especially unlikely, like in hadrosaurs, given that we have their skin very well preserved. It really depends on how much we know about the scales of the animal, and where we’ve found them on the animal in question. 

- These impressions come from adults almost entirely across the board, meaning, infants may have had protofeathers that they then lost in adulthood - which they could have kept for added insulation, especially since the added temperature control they would get with larger size was not present when infants 

TL;DR: WHEN IT COMES TO NOT-THEROPODS, we do know of quite a few dinosaurs that decidedly did not have feathers. Others we know had scales, but we don’t know if their entire body was covered. The more closely related to the ancestral dinosaur something is, the more likely it still has floof. 

- Not-sauropod Sauropodomorphs we have no idea and given their basal position probably had protofeathers; Sauropods probably did not have floof; definitely did not in the Titanosaurs 
- Ornithischians not in more derived groups - such as Heterodontosaurs - definitely had floof
- Hadrosaurs definitely did not 
- Early ceratopsians may have had quills only on the tail; later forms unlikely 
- Stegosaurs & ankylosaurs unlikely to have extensive floof 
- Possible that anything (except titanosaurs and hadrosaurs) had vestigial tufts like elephants; feathers don’t fossilize well 
- All of this is about adults; we don’t know about the infants 

holy crap a lot of sources coming hold onto your butts; under the cut cause it was INTENSE 

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