Iguanodon Scientific Classification
Iguanodon Physical Characteristics
4,000 – 5,000 kg
Iguanodon Distribition

The Iguanodon is a big vegetarian dinosaur that stayed in the Late Jurassic and Very early Cretaceous durations (in between 161.2 to 99.6 million years ago). The fossil distribution reveals the species lived primarily in Europe however could have stayed in North Africa and The United States and Canada also. The Iguanodon was initially recognized and called based upon a handful of teeth fossils uncovered in the 19th century. The teeth resembled they were from a huge iguana, therefore the name Iguanodon


  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Reptilia
  • Order: Ornithischia
  • Family: Iguanodontidae
  • Genus: Iguanodon

Summary & Dimension

Iguanodon is a genus of Iguanodontian dinosaurs that lived in between the Late Jurassic and Very early Cretaceous durations. Originally, lots of species were identified as a component of this genus. Nevertheless, later on taxonomic alteration has actually currently tightened it down. Presently, just 2 Iguanodon species exist: the Iguanodon bernissartensis and Iguanodon ottingeri The I. bernissartensis is the kind species of this genus.

The Iguanodon is carefully pertaining to the duck- billed dinosaurs. Researchers thought that this large herbivore was both bipedal and quadrupedal. This suggests either strolling on 2 legs or all fours. The kind I. bernissartensis could have considered as high as 3.4 heaps typically and had to do with 9 -11 m (30 – 36 feet) long. Nevertheless, paleontologists have actually revealed Iguanodon fossils that were as high as 13 meters long.

Iguanodons had huge slim abilities with toothless beaks that were most likely made up of keratin. The teeth look similar to that of the Iguana, which is the basis of its name. The Iguanodon had effective legs however was probably incapable to run really quickly. Possibly one of the most noteworthy physical quality of this old dinosaur is the visibility of a spiked thumb on their forelimbs. This cone-shaped thumb spike was as lengthy as the various other fingers and integrated to the wrist. Originally, researchers incorrectly believed the spike got on the Iguanodon’s head.

Possibly one of the most noteworthy physical quality of the Iguanodon is the visibility of a spiked thumb on their forelimbs, as seen below.iStock.com/ leonello

Diet – What DidIguanodons Eat?

The Iguanodon’s teeth appear like that of a vegetarian reptile. Nevertheless, researchers are still not sure concerning what it takes and exactly how it consumes it. The Iguanodon had a well- established jaw which implied it might eat a wide variety of plants. Offered its dimension, professionals thought it might access tree vegetation from trees as high as 4– 5m. The Iguanodon’s diet most likely consisted of horsetails, conifers, and cycads, the leading plant species on the European continent at the time.

Environment – When and Where Iguanodons Lived

TheIguanodon probably stayed in woodlands, seaside inlets, swamplands, and islands in what is currently existing- day Europe throughout the mid- Jurassic to late Cretaceous. Some paleontologists assume Iguanodons stayed in herds. Nevertheless, there is no definitive proof to sustain the reality that they embedded with each other; Iguanodon fossils lived throughout Europe in numerous nations, consisting of Belgium, Germany, Portugal, Spain, and the UK.

Dangers and Predators of Iguanodons

As a plant- consuming dinosaur, the Iguanodon went to danger of assault by any type of huge predators living within the exact same environment array. The Torvosaurus gurneyi is just one of the biggest predators in Europe around the exact same duration as the Iguanodon There is a likelihood that this predator dinosaur could have victimized the Iguanodon Various other killer species that co- existed with it consist of Razanandrongobe sakalavae, Baryonyx walkeri, Neovenator salerii, and the Megalosaurus.

The Torvosaurus gurneyi, or, Torvosaurus, was likely a significant killer to the Iguanodon.iStock.com/ Elenarts108

Discoveries and Fossils – Where Iguanodons were Located

Iguanodon bernissartensis was initial explained in 1881. The species in this genus are best understood for the numerous fossil continues to be that researchers collected in the Sainte- Barbe Clays Development at Bernissart along with various other areas throughout Europe.

Researchers recognized the initial iguanodon fossil in 1825. English doctor, Gideon Mantell, discovered the solitary tooth. The exploration was substantial considering that it was the 2nd recognized dinosaur species. The fossil tooth worked as proof that dinosaurs were reptiles. The genus name is based upon the summary of the tooth, which Mantell observed to be similar to that of the Iguana

Employees at a quarry in Maidstone, Kent, recouped a semi- undamaged fossil from the Lower Greensand Development in 1834, which Mantell had the ability to relate to the formerly recognized teeth fossil. Nevertheless, maybe one of the most substantial locate is that of 35 fossils discovered in fantastic problem in a coal mine in Brussels. This exploration offered a much deeper understanding of this genus of dinosaurs. Considering that they discovered the fossil continues to be in teams, researchers assume the Iguanodon might have relocated herds. Researchers have actually likewise verified fossilized tracks of this old animal in down payments from the Late Jurassic and Very early Cretaceous duration.

Iguanodon fossil
Several Iguanodon fossils were collected in the Sainte- Barbe Clays Development at Bernissart.By Ben2 – Own job, CC BY- SA 3.0, https://commons.wikimedia.org/w/index.php?curid=3166764 – Permit

Termination: When Did Iguanodons Pass Away Out?

The Iguanodons resided on planet throughout the Late Jurassic to Very early Cretaceous duration. They most likely went extinct in between 126 -122 million years back. According to paleontologists, the loss was progressive. They slowly shed numbers up until the whole population .

Similar Animals to The Iguanodon

  • Megalosaurus buckendii: This is the initial dinosaur fossil that was officially called. It was uncovered in 1822 in existing- day England and could have lived throughout the mid- Jurassic duration also.
  • Hylaeosaurus: This is a vegetarian dinosaur that lived concerning 136 million years back. It was the initial dinosaur fossil to be placed on display screen, together with the megalosaurus andIguanodon
  • Hadrosauridae: the level- billed dinosaur is a close family member of the Iguanodon.


  1. , Available here: https://www.britannica.com/animal/Iguanodon
  2. , Available here: https://en.wikipedia.org/wiki/Iguanodon
  3. , Available here: https://www.nhm.ac.uk/discover/dino-directory/iguanodon.html
  4. , Available here: https://ark.fandom.com/wiki/Iguanodon

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