Istiorachis macarthurae Istiorachis
"sail spine"
You 1.8 m (5.9 ft) tall
Istiorachis 5 m (16.4 ft) long
3 people holding hands
- Length
- 5 m (16.4 ft)
- Period
- Early Cretaceous (145–100 Mya)
- Place
- United Kingdom
- Food
- Herbivore
- Clade
- Dinosauria
Istiorachis (meaning “sail spine”) is an extinct genus of iguanodontian ornithopod dinosaur from the Early Cretaceous (Barremian age) Wessex Formation of the Isle of Wight, England. The genus contains a single species, Istiorachis macarthurae, known from a partial postcranial skeleton including several vertebrae, incomplete ribs, and part of the pelvis. Its vertebral are notably elongated, giving the animal a ‘sail-backed’ appearance.
What we know
- Named by Lockwood, Martill & Maidment, 2025.
- Fossils found in United Kingdom.