THE PREHISTORIC A–Z
Explore the letter I
A research index of dinosaur genus names, including names whose status has changed.
1,888 names catalogued from Wikipedia’s genus list on 11 October 2026. Inclusion does not establish that a name is a valid dinosaur genus. Historical or disputed names are marked for review. Names without a field note link go to the source overview.
- Iani ↗Source index entry
- Iberospinus ↗Source index entry
- Ibirania ↗Source index entry
- Ichabodcraniosaurus ↗Historical / disputed: review source
- Ichthyovenator ↗Source index entry
- Igai ↗Source index entry
- Ignavusaurus ↗Source index entry
- Ignotosaurus ↗Historical / disputed: review source
- Iguanacolossus ↗Source index entry
- Iguanodondinosaur · Cretaceous
- Iguanoides ↗Historical / disputed: review source
- Iguanosaurus ↗Historical / disputed: review source
- Ikqaumishan ↗Historical / disputed: review source
- Iliosuchus ↗Source index entry
- Ilokelesia ↗Source index entry
- Imperobator ↗Source index entry
- Imrankhanhero ↗Historical / disputed: review source
- Imrankhanshaheen ↗Historical / disputed: review source
- Inawentu ↗Source index entry
- Incisivosaurus ↗Source index entry
- Indosaurus ↗Source index entry
- Indosuchus ↗Source index entry
- Infernogallus ↗Source index entry
- Ingenia ↗Historical / disputed: review source
- Ingentia ↗Source index entry
- Inosaurus ↗Source index entry
- Invictarx ↗Source index entry
- Irisosaurus ↗Source index entry
- Irritatordinosaur · Cretaceous
- Isaberrysaura ↗Source index entry
- Isanosaurusdinosaur · Jurassic
- Isasicursor ↗Source index entry
- Ischioceratops ↗Source index entry
- Ischisaurus ↗Historical / disputed: review source
- Ischyrosaurus ↗Historical / disputed: review source
- Isisaurus ↗Source index entry
- Issi ↗Source index entry
- Istiorachis ↗Source index entry
- Itaguyra ↗Historical / disputed: review source
- Itapeuasaurus ↗Source index entry
- Itemirus ↗Source index entry
- Iuticosaurus ↗Source index entry
- Iyuku ↗Source index entry