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Iguanodontia

Taxon

5 image(s) · 2 News

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Seven ornithopods (top to bottom): Ouranosaurus, Tenontosaurus (background) with Convolosaurus (foreground), Muttaburrasaurus, Edmontosaurus annectens, Dryosaurus altus, Corythosaurus casuarius
Taxa Ornithopoda

Seven ornithopods (top to bottom): Ouranosaurus, Tenontosaurus (background) with Convolosaurus (foreground), Muttaburrasaurus, Edmontosaurus annectens, Dryosaurus altus, Corythosaurus casuarius

Clypeodonta Convolosaurus Corythosaurus Dryomorpha +9
Seven ornithopods (top to bottom): Ouranosaurus, Tenontosaurus (background) with Convolosaurus (foreground), Muttaburrasaurus, Edmontosaurus annectens, Dryosaurus altus, Corythosaurus casuarius
Taxa Iguanodontia

Seven ornithopods (top to bottom): Ouranosaurus, Tenontosaurus (background) with Convolosaurus (foreground), Muttaburrasaurus, Edmontosaurus annectens, Dryosaurus altus, Corythosaurus casuarius

Clypeodonta Convolosaurus Corythosaurus Dryomorpha +9
Seven ornithopods (top to bottom): Ouranosaurus, Tenontosaurus (background) with Convolosaurus (foreground), Muttaburrasaurus, Edmontosaurus annectens, Dryosaurus altus, Corythosaurus casuarius
Taxa Euiguanodontia

Seven ornithopods (top to bottom): Ouranosaurus, Tenontosaurus (background) with Convolosaurus (foreground), Muttaburrasaurus, Edmontosaurus annectens, Dryosaurus altus, Corythosaurus casuarius

Clypeodonta Convolosaurus Corythosaurus Dryomorpha +9
Seven ornithopods (top to bottom): Ouranosaurus, Tenontosaurus (background) with Convolosaurus (foreground), Muttaburrasaurus, Edmontosaurus annectens, Dryosaurus altus, Corythosaurus casuarius
Taxa Dryomorpha

Seven ornithopods (top to bottom): Ouranosaurus, Tenontosaurus (background) with Convolosaurus (foreground), Muttaburrasaurus, Edmontosaurus annectens, Dryosaurus altus, Corythosaurus casuarius

Clypeodonta Convolosaurus Corythosaurus Dryomorpha +9
Seven ornithopods (top to bottom): Ouranosaurus, Tenontosaurus (background) with Convolosaurus (foreground), Muttaburrasaurus, Edmontosaurus annectens, Dryosaurus altus, Corythosaurus casuarius
Taxa Euornithopoda

Seven ornithopods (top to bottom): Ouranosaurus, Tenontosaurus (background) with Convolosaurus (foreground), Muttaburrasaurus, Edmontosaurus annectens, Dryosaurus altus, Corythosaurus casuarius

Clypeodonta Convolosaurus Corythosaurus Dryomorpha +9
Seven ornithopods (top to bottom): Ouranosaurus, Tenontosaurus (background) with Convolosaurus (foreground), Muttaburrasaurus, Edmontosaurus annectens, Dryosaurus altus, Corythosaurus casuarius
Taxa Clypeodonta

Seven ornithopods (top to bottom): Ouranosaurus, Tenontosaurus (background) with Convolosaurus (foreground), Muttaburrasaurus, Edmontosaurus annectens, Dryosaurus altus, Corythosaurus casuarius

Clypeodonta Convolosaurus Corythosaurus Dryomorpha +9
skull of iguanodontian Altirhinus kurzanovi
Taxa Altirhinus

skull of iguanodontian Altirhinus kurzanovi

Altirhinus Iguanodontia skull
Simplified cladogram of Iguanodontia, drawn by me, based on Norman 2004 ("Basal Iguanodontia" in The Dinosauria 2nd Edition).

Simplified cladogram of Iguanodontia, drawn by me, based on Norman 2004 ("Basal Iguanodontia" in The Dinosauria 2nd Edition).

Dinosauria Iguanodontia Mochlodon
The Maastrichtian, Transylvanian giant azhdarchid pterosaur Hatzegopteryx sp. preys on the rhabdodontid iguanodontian Zalmoxes. Because large predatory theropods are unknown on Late Cretaceous Haţeg Island, giant azhdarchids may have played a key role as terrestrial predators in this community.

The Maastrichtian, Transylvanian giant azhdarchid pterosaur Hatzegopteryx sp. preys on the rhabdodontid iguanodontian Zalmoxes. Because large predatory theropods are unknown on Late Cretaceous Haţeg Island, giant azhdarchids may have played a key role as terrestrial predators in this community.

predator prey Cretaceous Late Cretaceous +8
Illustration of the iberian iguanodontian Delapparentia turolensis.
Taxa Delapparentia

Illustration of the iberian iguanodontian Delapparentia turolensis.

Delapparentia Iguanodontia

News

125 million-year-old dinosaur with never before seen hollow spikes discovered in China
China juvenile Dinosauria Iguanodontia
A 125-million-year-old dinosaur just rewrote what we thought we knew about prehistoric life. Scientists in China have uncovered an exceptionally preserved juvenile iguanodontian with fossilized skin so detailed that individual cells are still visible. Even more astonishing, the plant-eating dinosaur was covered in hollow, porcupine-like spikes—structures never before documented in any dinosaur.
18/02/2026 sciencedaily
Episode 170: Cariocecus bocagei
Cretaceous Jurassic Late Jurassic Cariocecus Iguanodontia
The iguanodontians were an incredibly successful group within the Cretaceous. They could reach incredible sizes, with the largest species even matching the proportions of some sauropods, and they also had an incredible palaeogeographic range, meaning that their remains are found all over the world today. In the late Jurassic, they were a lot less diverse [&hellip
15/09/2025 palaeocast