Hesperonyx martinhotomasorum

"western claw"

You 1.8 m (5.9 ft) tall
Hesperonyx 5 m (16.4 ft) long
as long as 3 people standing fingertip to fingertip
Length
5 m (16.4 ft)
Period
Late Jurassic (163–145 Mya)
Place
Portugal
Food
Herbivore
Clade
Dinosauria The clade containing all dinosaurs, terrestrial archosaurs with upright limbs.
Hesperonyx reconstruction by Ddinodan
Reconstruction · Ddinodan (CC-BY)

Hesperonyx (meaning “western claw”) is an extinct genus of dryomorphan ornithopod dinosaur from the Late Jurassic Lourinhã Formation of Portugal. The genus contains a single species, Hesperonyx martinhotomasorum, known from bones of the fore- and hindlimbs.

What we know

  • Named by Rotatori et al., 2024.
  • Fossils found in Portugal.

What we guess

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