49Mesozoic
Iguanodon
Iguanodon bernissartensis
A conical thumb spike and batteries of chewing teeth equipped this adaptable herbivore.
Western Europe
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Dinosaurs of the United Kingdom
Explore British dinosaurs including Megalosaurus, Iguanodon, Baryonyx, Eotyrannus and Scelidosaurus, from Jurassic discoveries to Early Cretaceous habitats.
Places, environments and evidence
British dinosaur history includes Jurassic discoveries and the Early Cretaceous Wealden record of southern England and the Isle of Wight. The linked profiles distinguish terrestrial dinosaurs from the marine reptiles also found in British rocks. The current country boundary organizes discoveries across several ancient landscapes rather than defining one prehistoric island.
86Mesozoic
Baryonyx
Baryonyx walkeri
A crocodile-like snout and huge thumb claw equipped this theropod to catch fish and other prey.
River and lake country of Western Europe · Present-day Britain
273Mesozoic
Megalosaurus
Megalosaurus bucklandii
The first formally named non-avian dinosaur later became a wastebasket for unrelated theropod bones.
Island valleys and coastal plains · Britain
535Mesozoic
Eotyrannus
Eotyrannus lengi
Long three-fingered arms and a light body preceded the giant two-fingered tyrannosaurs.
Humid floodplain · Britain
539Mesozoic
Scelidosaurus
Scelidosaurus harrisonii
Rows of armor from neck to tail mark an early split among armored dinosaurs.
Coastal plain and estuary · Britain
Common questions
Are British marine reptiles dinosaurs?
No. Ichthyosaurs and plesiosaurs belong to separate reptile lineages. This country page selects non-avian dinosaurs; the broader archive includes those marine animals.