Aardonyx celestae

You 1.8 m (5.9 ft) tall
Aardonyx 5 m (16.4 ft) long
as long as 3 people standing fingertip to fingertip
Length
5 m (16.4 ft)
Period
Early Jurassic (201.3–190.8 Mya)
Place
Africa · Australia · South Africa
Food
Herbivore
Clade
Dinosauria The clade containing all dinosaurs, terrestrial archosaurs with upright limbs.
Aardonyx reconstruction by Nobu Tamura (https://spinops.blogspot.com)
Reconstruction · Nobu Tamura (https://spinops.blogspot.com) (CC-BY)

Aardonyx (Afrikaans aard, “earth” + Greek , “nail, claw”) is a genus of basal sauropodomorph dinosaur. It is known from the type species Aardonyx celestae found from the Early Jurassic Elliot Formation of South Africa. A. celestae was named after Celeste Yates, who prepared much of the first known fossil material of the species. It has arm features that are intermediate between basal sauropodomorphs and more derived sauropods.

Based on the structure of the hind limbs and pelvic girdle of Aardonyx, the dinosaur normally moved bipedally but could drop to quadrupedal movement similar to Iguanodon. It shares some attributes with giant quadrupedal sauropods like Apatosaurus. Australian paleontologist Adam Yates and his team’s discovery of the genus was published online before print in Proceedings of the Royal Society B in November 2009, and was scheduled to appear in the March 2010 issue.

What we know

  • Named by Yates et al., 2010.
  • Fossils found in Africa and Australia.

What we guess

The reconstruction notes for Aardonyx — soft tissue, color, behavior — haven't been written up yet. Only the recorded basics above are filled in so far.