Eousdryosaurus nanohallucis

† Eousdryosaurus nanohallucis — a Late Jurassic dryosaurid ornithopod from Portugal. Small herbivorous biped with reduced hallux (nanohallucis = tiny thumb toe). Found in Lourinhã Formation. Contributes to understanding the diverse ornithopod fauna of Late Jurassic Iberia alongside large sauropods.

Diet & Feeding

Herbivore

Eousdryosaurus nanohallucis was a plant-eating dinosaur. Herbivores typically fed on ferns, cycads, conifers, and other vegetation available during their era. Many herbivorous dinosaurs developed specialized teeth and digestive systems for processing tough plant material.

Time Period

Jurassic Late Mesozoic Era

Eousdryosaurus nanohallucis lived during the Jurassic Late period of the Mesozoic Era, approximately 161.5 to 145.0 million years ago.

One of the most iconic periods for dinosaurs. Giant sauropods like Brachiosaurus and Diplodocus roamed alongside predators like Allosaurus. Archaeopteryx, the earliest known bird, appeared. The Morrison Formation preserves an extraordinary fossil record from this time.