[click Mephala]

Psittacosaurus was a genus of dinosaurs that existed during the early Cretaceous period in East Asia. As a basal Ceratopsian genus, it forms an early diversion from the of it’s more derived cousins like the famed Triceratops to come later on, but has proven to be the most abundant fossilized dinosaur genus with over 400 individuals discovered, covering a wide range of age groups. This makes it one of the most well understood dinosaur genera. Unlike later, larger relatives, Psittacosaurus was bipedal, and may have use it’s short forelimbs to carry food and nesting material. Perhaps even more interestingly, Psittacosaurus had filaments or quills on its tail, preserved in fossilized impressions. While not the same as feathers, or even protofeathers, and having evolved separately, this makes another notable instance of having more than just bare skin. A more recent discovery of a Triceratops specimen also seems to have had quills. It is not thought that Triceratops is a direct ancestor of Psittacosaurus, so this discovery shows that quills were a feature very early on in Ceratopsian evolution, and may have existed in some form on most Ceratopsians.

Psittacosaurus was a genus of dinosaurs that existed during the early Cretaceous period in East Asia. As a basal Ceratopsian genus, it forms an early diversion from the of it’s more derived cousins like the famed Triceratops to come later on, but has proven to be the most abundant fossilized dinosaur genus with over 400 individuals discovered, covering a wide range of age groups. This makes it one of the most well understood dinosaur genera. Unlike later, larger relatives, Psittacosaurus was bipedal, and may have use it’s short forelimbs to carry food and nesting material. Perhaps even more interestingly, Psittacosaurus had filaments or quills on its tail, preserved in fossilized impressions. While not the same as feathers, or even protofeathers, and having evolved separately, this makes another notable instance of having more than just bare skin. A more recent discovery of a Triceratops specimen also seems to have had quills. It is not thought that Triceratops is a direct ancestor of Psittacosaurus, so this discovery shows that quills were a feature very early on in Ceratopsian evolution, and may have existed in some form on most Ceratopsians.

3 years ago

  1. joleenaatchley reblogged this from rhamphotheca
  2. time-holds-no-secrets reblogged this from rhamphotheca
  3. bumblingb reblogged this from rhamphotheca
  4. rhamphotheca reblogged this from eximago and added:
    Psittacosaurus was a genus of dinosaurs that existed during the early Cretaceous period in East Asia. As a basal...
  5. eximago posted this