GnathostomataGoniopholididae

Goniopholis crassidens

Goniopholis crassidens skeletal reconstruction, left lateral view, length ~2.85 m.
Scale bar = 1 meter
Taxon
Goniopholis crassidens Owen, 1841
Reconstructed length
~2.9 m (9 feet)
View
Left lateral
Drawing
© Scott Hartman
Drawn
2010, revised 2018
Clade
  1. Gnathostomata
  2. Tetrapoda
  3. Amniota
  4. Sauropsida
  5. Archosauromorpha
  6. Archosauria
  7. Pseudosuchia
  8. Crocodylomorpha
  9. Neosuchia
  10. Goniopholididae

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Goniopholis would have looked superficially quite similar to modern crocodilians, but it was actually quite a ways down the crocodile family tree. As a semiaquatic neosuchian living from the Late Jurassic to Early Cretaceous, it seems to have played a similar ambush-predator ecological role; again presaging what we see in modern crocodilians. One other important similarity, there is clear evidence that Goniopholis had reverted to being cold-blooded, again like living relatives but very different from Triassic croc-line archosaurs, which seem to have had elevated metabolisms.