Discover the 27 Dinosaurs That Start With I

For thousands of years, dinosaurs roamed the earth. From tiny turkey-sized dinosaurs to huge carnivorous beasts, they inhabited every corner of the world. There were thousands of different dinosaurs, and even now we’re discovering fascinating new species. Let’s explore the complete list of dinosaurs that start with I!

Iguanodon

The first dinosaur we’re talking about is the herbivorous Iguanodon, which lived in the Late Jurassic and Early Cretaceous periods. Iguanodon literally means “iguana tooth”, the name being coined as it’s believed that they had teeth similar to those of iguanas. Iguanodon was typically 20 to 36 feet long with a robust body but a narrow head. It was herbivore and likely inhabited forests and woodlands, where it ate a variety of vegetation.

Incisivosaurus

Incisivosaurus was a small theropod from the Early Cretaceous era. Incisivosaurus is unique as it was a herbivore, or possibly an omnivore. Its name means “incisor lizard” and was given because of its rodent-like incisor teeth. Incisivosaurus was only 2.5 to 3.3 feet long and was likely covered with feathers. It inhabited the land that is now China in areas where there was plenty of vegetation for them to eat.

Indosuchus

The next dinosaur is Indosuchus, whose name means “Indian dinosaur”, which is a nod to the initial finding of skull fragments in India. Indosuchus lived during the Late Cretaceous era, approximately 66 to 70 million years ago. It was a theropod in the Abelisauridae family and was approximately 32 feet long and 16 feet high. Little else is known about Indosuchus, although it is described as having a flattened skull, likely with a crest on it.

Isisaurus

Next is a sauropod — the Isisaurus — from the Late Cretaceous period. Isisaurus was a huge animal, being around 60 feet long with a thick neck and a long tail. It differed from most other sauropods as it had longer forelimbs than hindlimbs. It also had spines along its neck and tail and a particularly small head. Isisaurus was a herbivore and ate leaves from a variety of trees. It inhabited Central Asia in an area that is now India, where it is thought to have lived in woodlands.

Imperobator

One of the most fascinating dinosaurs on the list is the Imperobator, whose name means “powerful warrior.” Imperobator inhabited Antarctica during the Late Cretaceous period. The first fossils were discovered in 2003 and included parts of the hind limbs. Imperobator was a paravian theropod around 6.6 feet high. It was a carnivore and had long, curved teeth.

Iberospinus

Another particularly unique dinosaur is Iberospinus, which is thought to have had a semi-aquatic lifestyle. Iberospinus lived during the Early Cretaceous period in the area that is now Portugal. It was first discovered in 1999 and is estimated to have been around 33 feet long. Iberospinus lived around lagoons and is believed to have been a strong swimmer and adapted to hunting in the water.

Ichthyovenator

Another spinosaurid dinosaur is the Ichthyovenator, which lived during the Early Cretaceous period. Ichthyovenator was a large animal, measuring around 28 feet long and reaching almost 10 feet high. It had a sail on its back, which was divided into two sections, and a narrow snout with straight but sharp teeth. Ichthyovenator had a semi-aquatic lifestyle and preyed mainly on aquatic animals.

Isasicursor

Isasicursor was an ornithopod which lived during the Late Cretaceous period. It inhabited Argentina, and the first fossils from it were found in 1980 in the Santa Cruz province. Isasicursor was approximately 16 feet long but was not particularly tall, being smaller than the average human. Isasicursor was a herbivore and likely lived in herds.

Ibirania

The next dinosaur is Ibirania, whose name means “tree wanderer”. It was a relatively small sauropod, being only approximately 19 feet long. However, it still had a stocky body with sturdy legs. Ibirania lived during the Late Cretaceous period in Brazil. It is thought to have lived inland in particularly arid regions. Ibirania was a herbivore and ate a variety of vegetation.

Full List of All Dinosaurs That Start With I

As well as the dinosaurs that we’ve already mentioned, there are still quite a few others that begin with the letter I. Let’s take a quick look at them below.

1. Iberospinus
2. Ibirania
3. Ichthyovenator
4. Ignavusaurus
5. Iguanacolossus
6. Iguanodon
7. Iliosuchus
8. Ilokelesia
9. Imperobator
10. Incisivosaurus
11. Indosaurus
12. Indosuchus
13. Ingentia
14. Inosaurus
15. Invictarx
16. Irisosaurus
17. Irritator
18. Isaberrysaura
19. Isanosaurus
20. Isasicursor
21. Ischioceratops
22. Isisaurus
23. Issi
24. Itapeuasaurus
25. Itemirus
26. Iuticosaurus
27. Iyuku

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