Fun Facts about Magnamanus

Magnamanus grew and lived near the Golmayo Marshes during the Cretaceous Period, about 130 million years ago. Magnamanus soriaensis was a four-legged herbivore that measured at least 10 metres in length and weighed 3.5 tonnes. The specimen is one of the most complete of a dinosaur from what is now Spain’s Lower Cretaceous period.

Magnamanus looks and is the same size as Iguanodon, but it is a younger cousin that lived at least 20 million years before Iguanodon. In addition to Magnamanus, a sauropod more than 20 metres long and an armoured herbivore with massive skin plates and spikes comparable to Polacanthus were discovered in the Golmayo Formation. The Magnamanus’ jaws were filled with a vast number of old and decaying teeth. As a result, the discovery is most likely a very old animal that died in a flood and washed up on the spot.

Let’s find out more about Magnamanus.

1: Magnamanus quick facts:

Name: Magnamanus (Greek for “Big Hand”); pronounced Mag-na-ma-nus
When it lived: Early Cretaceous, 130 million years ago
Type of dinosaur: Ornithopod
Location: Spain
Habitat: Terrestrial.
Length/Weight: 9-10 meter/Over 3000kg
Diet: Herbivorous
Distinguishing Characteristics: It resembled the Iguanodon.
Named by: Vidarte et al. (2016)

2: How do you pronounce ‘Magnamanus’?

The name Magnamanus  should be pronounced “Mag-na-ma-nus.”

3: What does the name Magnamanus mean?

The generic name is derived from the Latin words magnus, which means enormous, and manus, which means hand. The genre epithet relates to the province of Soria in Spain.

4: What Did Magnamanus Look Like?

Magnamanus dinosaur. (photo source: cisiopurple/

The Magnamanus was a huge herbivorous ornithopod dinosaur with exceptionally broad hands. As with other members of the Iguanodontia group, their big hands sported a projecting thumb vertebra and fifth finger. Additionally, the dinosaurs were described based on the morphology of their skulls and postcranial remnants.


Written by James

James has always been intrigued by dinosaurs, the universe, technology, and animals. With a Bachelor of Computer Science and years of writing expertise, he joined World Amazing Facts in 2021 as a staff writer.

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