Planet Dinosaur Wiki

Spinosaurus was a genus of large theropod dinosaur which lived during the Cretaceous period.

At a length of 17 metres and a weight of 11 tonnes, it was the largest terrestrial predator of all time.

In Planet Dinosaur

Lost World

A Spinosaurus spooks a herd of Ouranosaurus which mistake it as a threat.  The Spinosaurus, fortunately, is not interested in the dinosaurs as they are not its usual prey.

The Spinosaurus arrived at a river and scared off some crocodiles. The reason why the Spinosaurus came to the river was to feed on sawfish called Onchopristis.  The Spinosaurus went into the river and waited for the Onchopristis to come close. It was able to snatch one out of the water and kill it on the river bank where it fed on the fleshier parts of the carcass. This was wasteful, letting a smaller Rugops to scavenge on the remains.  It returned to river and killed another Onchopristis and ate that one too. Later, it swam down the river.

During a drought, a Spinosaurus confronted a small crocodile but was then repelled by a Sarcosuchus which was disturbed during its hibernation. The spinosaurus was at great risk of being dragged in by the 40 foot sarcosuchus, where in this case, the spinosaurus was full aware and had been forced to move on. It later attacked a feeding flock of the pterosaur Alanqa, killing one in the process.  It then moved on due to its hunger.

It later came across a Carcharodontosaurus feeding on a Ouranosaurus carcass. The Spinosaurus confronted it and the two predators fought over the carcass. The Carcharodontosaurus managed to bite the Spinosaurus' sail during the battle. The Spinosaurus won the fight and fed well however, its sail was broken by the bites. These injuries were fatal and the Spinosaurus died days later.


  • Spinosaurus is the largest theropod dinosaur in the show.
  • Alongside Rugops, Spinosaurus is the only African species that didn't appear in the fifth episode, New Giants, as well as Lost World.
  • While the Spinosaurus died due to its spinal injury in the documentary, the real-life specimen who suffered the wound survived it and continued to live for many more years.


  • In 2014, Spinosaurus was discovered to have a different sail shape.
  • Spinosaurus, according to the 2014 paper, had shorter back legs than previously thought.
  • The shorter back legs (and the already known 'crocodilian' snout) suggest that Spinosaurus had a semi-aquatic lifestyle and could swim.
    • While the show has depicted Spinosaurus as a creature that spent some time in the water, its swimming capabilities have been a topic of debate since 2018, with current understand being that Spinosaurus was not a very good swimmer and most likely spend most of its time on land and/or shallow water.
      • This is accurate to what was depicted in the show.
  • In 2014, Spinosaurus was proposed to have been primarily quadrupedal, in accordance to the description of the 2014 specimen. This has since been debunked.
  • In 2020, a paper described the tail of Spinosaurus, which was flat and paddle-like. It was considered as evidence supporting the Swimming Spinosaurus theory, but another paper has since countered this conclusion, claiming that the tail was unable to generate enough force to propel Spinosaurus through the water.
  • In 2021, a new paper claimed that the degree of aquatic attributions for Spinosaurus is not consistent. Spinosaurus was most likely a terrestrial generalist carnivorous theropod that wade through waterways and shores, much akin to herons, pelicans, shoebills, giant petrels, and skuas.

Planet Dinosaur Database and Mentioned Creatures

Lost World: Tyrannosaurus  • Spinosaurus  • Irritator  • Baryonyx  • Siamosaurus  • Onchopristis  • Carcharodontosaurus  • Allosaurus  • Aerosteon  • Lacusovagus  • Iguanodon
Feathered Dragons: Microraptor  • Sinornithosaurus  • Epidexipteryx  • Sinosauropteryx  • Anchiornis  • Sinraptor  • Oviraptor  • Gigantoraptor  • Caudipteryx  • Troodon  • Beipiaosaurus  • Jeholosaurus  • Tianyuraptor  • Velociraptor
Last Killers: Gorgosaurus  • Daspletosaurus  • Tarbosaurus  • Tyrannosaurus  • Albertosaurus  • Chasmosaurus  • Psittacosaurus  • Raptorex  • Protoceratops  • Alectrosaurus  • Triceratops  • Mojoceratops  • Styracosaurus  • Alioramus  • Troodon  • Edmontosaurus  • Majungasaurus  • Carcharodontosaurus  • Centrosaurus
Fight for Life: Kimmerosaurus  • PliosaurusTyrannosaurus  • Stegosaurus  • Camptosaurus  • Allosaurus  • Saurophaganax

New Giants: Argentinosaurus  • Mapusaurus  • TyrannosaurusAllosaurusDiplodocusNeovenatorOrnithopsisSinraptorMamenchisaurus  • Paralititan  • Sarcosuchus  • Carcharodontosaurus  • Sauroposeidon  • Acrocanthosaurus
The Great Survivors: Ampelosaurus  • Iguanodon  • Neovenator  • Hypsilophodon  • Paralititan  • Spinosaurus  • Carcharodontosaurus  • Deltadromeus  • Erectopus  • Quaesitosaurus  • Tarbosaurus  • Therizinosaurus  • Gallimimus  • Achillobator  • Mononykus  • Tyrannosaurus  • Triceratops  • Edmontosaurus  • Albertosaurus  • Gorgosaurus  • Anodontosaurus  • Dromaeosaurus  • Variraptor  • Argentinosaurus  •Mapusaurus  • Ankylosaurus  • Gasparinisaura  • Magyarosaurus  • Zalmoxes  • Telmatosaurus  • Hatzegopteryx  • Styracosaurus  • Stygimoloch  • Parasaurolophus  • Archaeoceratops  • Oviraptor  • Baryonyx  • Polacanthus  • Pelecanimimus  • Nothronychus  • Suskityrannus  • Clostridium  • Majungasaurus  • Microraptor  • Gigantoraptor  • Oviraptor  • Didelphodon