Planet Dinosaur

95 million years ago, Middle Cretaceous – (North Africa)

Plot

The episode begins in a swamp in what is now North Africa during the middle Cretaceous. A herd of Ouranosaurus are surprised by a Spinosaurus, which ignores them. Instead, it hunts Onchopristis, which are migrating into fresh-water rivers to breed. A Rugops primus feeds off its leftovers. The episode cuts to a pair of Carcharodontosaurus saharicus, who are fighting to hunt an Ouranosaurus herd. The victor of this battle then hunts and kills one of the herbivorous creatures. The episode then cuts to the Spinosaurus habitat, where a drought is taking place and the Spinosaurus, scared away from the remaining water by a Sarcosuchus. This is a giant crocodilian which can hibernate during the dry season. The Spinosaurus is forced to hunt on land. After killing and eating a pterosaur, it comes across a group of Ouranosaurus. Catching the scent of a kill, it discovers a Carcharodontosaurus saharicus, who has killed another Ouranosaurus. After a fight over the carcass, the Spinosaurus drives off the Carcharodontosaurus, although its sail is seriously injured. The narrator explains that a million years later, rising sea levels destroyed the Spinosaurus habitat, causing it to go extinct on Earth.

Animals

• Ouranosaurus
• Spinosaurus
• Crocodile
• Onchopristis (giant sawfish)
• Rugops primus
• Carcharodontosaurus saharicus
• Sarcosuchus
• Pterosaur 

154 million years ago, Middle Jurassic – (China, Asia)
85 million years ago, Late Cretaceous – (Mongolia, Asia)
120 million years ago, Early Cretaceous – (China, Asia)

Plot

The episode begins in a middle Jurassic forest of what is now China. An Epidexipteryx escapes from a Sinraptor, a type of metriacanthosaurid dinosaur, by climbing a tree. It finds a beetle grub in the tree bark, being shown to use its elongated fingers in a similar way to a modern day Aye-aye. However, its prey is stolen by another, larger Epidexipteryx, and after a brief bout of posturing, the smaller individual goes to find more food. It drops a second grub to the forest floor, where the other Epidexipteryx retrieves it, only to be eaten by the Sinraptor. The episode then cuts to a nearby desert in the late Cretaceous time period of Mongolia, where a type of troodontid called Saurornithoides is shown brooding a nest of eggs. When it leaves its brood unattended, an egg-hungry Oviraptor raids them, running away when the troodontid suddenly returns. The Saurornithoides is suddenly hunted down and devoured by a Gigantoraptor, which then heads to compete in a breeding ritual for mates. The males of this species use their feathers for display, a brief fight between two erupting at one point, allowing the females to choose the best suitor. The episode finally cuts to an early Cretaceous forest in China, where a gliding lizard called Xianglong is being hunted by a Microraptor, which uses its feathers to pursue it in the air.^[8] A sinornithosaur attacks it, and after a brief chase the Microraptor manages a lucky escape. The sinornithosaur is then shown hunting a mother Jeholosaurus and her three children, along with two other members of its species. The group takes down the mother, with the narrator explaining that their venomous bite allowed them to tackle enemies much larger than themselves. A montage is then shown of the feathered dinosaurs featured in the program, with the narrator saying that Microraptor not only hints at how flight might have developed, but also that dinosaurs still live amongst us today, as birds.

Animals

• Epidexipteryx
• Sinraptor
• Beetle larva
• Saurornithoides
• Oviraptor
• Gigantoraptor
• Xianglong (flying lizard)
• Microraptor
• Sinornithosaurus
• Jeholosaurus 

75 million years ago, Middle Cretaceous – (North America)
70 million years ago, Late Cretaceous – (Madagascar)

Plot

The episode begins in Canada during the middle Cretaceous, in what is now Dinosaur Provincial Park. A Daspletosaurus horneri stalks a Chasmosaurus belli in a forest, but loses the element of surprise and is forced to retreat. The Chasmosaurus comes across a younger Daspletosaurus, before being ambushed by a whole pack of Daspletosaurus. The episode then cuts to the high arctic, where a herd of Edmontosaurus annectens are hunted by a large genus of Troodon. The theropods attack at night, separating a juvenile from the herd and severly wounding it to death, only to be driven away by an adult Edmontosaurus. In the morning, they return to eat the carcass of the juvenile. The episode returns to the Daspletosaurus, who chase and finally finish off the Chasmosaurus. The larger, adult Daspletosaurus bully the young ones off the carcass, forcing them to wait until they have finished. The episode then cuts to late Cretaceous Madagascar, where a female Majungasaurus and her two infants chase a group of bird-like Rahonavis off a carcass. However, they are driven off by a feral, male Majungasaurus. But, after he steals some food from one of the children, the female attacks and kills him, before she and her babies cannibalise his body. The episode returns once again to North America, where the Daspletosaurus are waiting for the annual migration of Centrosaurus. They attack during a rainstorm, killing some of the herbivores. The Centrosaurus make it to a flooded river and begin to swim across, and although many make it to the other side, some are eaten by giant crocodilians or are severly wounded by obstacles and thus drown, or drown for unseen reasons. In the morning, the carcasses attract scavengers, including the Daspletosaurus. A montage is then shown of Daspletosaurus and Majungasaurus, with the narrator saying that together, that both the tyrannosaurs and abelisaurs were the last of the meat-eating dinosaurs.

Animals

• Daspletosaurus horneri
• Chasmosaurus belli
• Troodon
• Edmontosaurus annectens
• Majungasaurus
• Rahonavis
• Centrosaurus apertus
• Crocodilian 

147 million years ago, Middle Jurassic – (Europe)
150 million years ago, Late Jurassic – (North America)

Plot

The episode begins in the seas around Europe in the middle Jurassic. A group of Kimmerosaurus hunt Squatina. They are ambushed by a Pliosaurus, but manage to escape to water too shallow for the enormous monster. The episode then cuts to late Jurassic North America in the Morrison Formation, where groups of Stegosaurus and Camptosaurus coexist in a mutually beneficial relationship. The two fossils are almost always found together in the Morrison, and the script suggests they work together to defend against large predators. The Camptosaurus serve as lookouts, while the Stegosaurus provide protection. An Allosaurus attacks the group, and after the Camptosaurus flee, attacks the Stegosaurus, but in the end is severly wounded by a Stegosaurus thagomizer (the four spikes on its tail). However, the Allosaurus survives the horror and recovers from its injury. The episode returns to the Jurassic seas, where the tide has risen, allowing the Pliosaurus to attack the Kimmerosaurus, but it is unable to use its full power in the shallow water, allowing the agile plesiosaurs to escape. However, they must eventually return to deeper water to feed. The episode returns to North America, where another Allosaurus is hunting a female Camptosaurus and a male Camptosaurus, who are away from the protection of Stegosaurs. The theropod manages to kill one of the pair, only to be chased off its meal by a large Saurophaganax. The episode returns again to the middle Jurassic seas around Europe, where a female Kimmerosaurus is feeding near the surface in deeper water. She is attacked from below by the Pliosaurus, which finally manages to kill her, leaving half of her to sink to the seafloor. The episode ends with the narrator stating that creatures like Pliosaurus ruled the oceans for 100 million years during the Jurassic.

Animals

• Ammonite
• Squatina
• Kimmerosaurus
• Fish
• Pliosaurus
• Stegosaurus
• Camptosaurus
• Pterosaur
• Allosaurus
• Saurophaganax 

100 million years ago, Middle Cretaceous – (South America)
95 million years ago, Early Cretaceous – (North Africa)

Plot

The episode begins in middle Cretaceous South America at a nest site. An Argentinosaurus hatches, and is almost immediately attacked by a Pterosaur. The pterosaur is scared away by a large Skorpiovenator, who kills the hatchling. However, it itself flees when a herd of adult Argentinosaurus arrive, although they offer no protection for the hatchlings, which begin to feed on the surrounding vegetation. The episode then cuts to early Cretaceous North Africa, where a herd of Paralititan take a drink from a river to cool down. They are spooked when a group of crocodiles emerges from the water, and a juvenile becomes stuck in mud. The crocodiles are scared away by a Sarcosuchus, which closes in on the trapped Paralititan. The episode returns to South America, where the herd of Argentinosaurus move across a volcanic ash field to find food. Due to their sheer size, they churn up the ground with each step, creating quicksand that becomes a death trap for the small Hypsilophodonts travelling with them. The sauropods find a clump of trees and begin feeding, but are attacked by a group of Mapusaurus, a species of giant, carnivorous dinosaur. The theropods manage to rip a chunk of meat off one of the sauropods, but due to its size it is not fatally wounded by its attackers. During the attack, one of the Mapusaurus is crushed by an agitated Argentinosaurus. Back in north Africa, the Sarcosuchus gets a hold of one of the Paralititan's legs, but a Carcharodontosaurus saharicus grips its neck, and eventually wrestles it from the giant crocodilian's jaws. However, it is chased away by the adult Paralititan, and the juvenile survives. The episode finally cuts back to South America, where the injured Argentinosaurus lies dying. A time lapse is then shown of Mapusaurus, Skorpiovenator and Chaoyangopterid pterosaurs feeding on the carcass until the bones are all that is left. The narrator explains that when Argentinosaurus went extinct, so did Mapusaurus. The same event happened with Paralititan and Carcharodontosaurus in Africa. The Argentinosaurus skeleton is then shown biodegrading until only the bones found when it was first discovered are left to be fossilised.

Animals

• Argentinosaurus
• Pterosaur
• Skorpiovenator
• Mapusaurus
• Ouranosaurus
• Paralititan
• Crocodile
• Sarcosuchus
• Hypsilophodont
• Carcharodontosaurus saharicus 

65 million years ago, Late Cretaceous – (Hațeg Island, Romania)
92 million years ago, Late Cretaceous – (Zuni Basin, USA)
85 million years ago, Late Cretaceous – (Mongolia, Asia)

Plot

The episode begins during the end of the Mesozoic era, on Hațeg Island. A herd of Magyarosaurus feed on vegetation, while a reptile-like Bradycneme hunts lizards amongst them. However, they are vulnerable and have only a few predators. A group of pterosaurs called Hatzegopteryx descend from the sky, and kill dozens of young magyarosaurs. The episode then cuts to Montana, 92 million years ago. A female Aublysodon attacks two Nothronychus, a type of early Cretaceous therizinosaurs, but is driven off by the humongous therizinosaurs. The therizinosaurs feed on the surrounding vegetation, but are then attacked by a group of male Aublysodons, but again manage to fight them off. The tyrannosaurs are forced to scavenge on a nearby carcass of their own species. However, they catch botulism from the rotting flesh, and die. The episode then cuts to Mongolia, 7 million years later. A pair of Gigantoraptors guard their nest from marauding predators, driving off a carnivorous Alectrosaurus. The female Gigantoraptor leaves the male with the nest, presumably to find food. After a rainstorm, the male Gigantoraptor is attacked by both a female Alectrosaurus and a male Alectrosaurus, and while they fight, an Oviraptor attacks the nest. The Gigantoraptor manages to drive off the predatory pair of tyrannosaurs, and chases away its smaller relative without losing any eggs. However, he is later buried during a sandstorm, still guarding his nest. The episode then cuts to 65 million years ago, when an enormous asteroid crashes into the gulf of Mexico, causing devastation upon impact and filling the atmosphere with debris. 4 months later on Hațeg Island, most vegetation has died due to the lack of sunlight, starving the Margyarosaurus. Scavengers do well for the time being, with a group of Hatzegopteryx driving a Bradycneme off a carcass.^[9] The smaller dinosaur is forced to hunt lizards, while the narrator explains that 60% of species went extinct, with the dinosaur's size being what ultimately condemned them to extinction. A claim is made that "On land no animal weighing more than 25 kg survived". A montage is then shown of various creatures featured throughout the previous 5 episodes, with the narrator saying that dinosaurs are the most successful group of animals ever to exist on earth,^[10] and that it was a large extraterrestrial event that finally ended Planet Dinosaur.

Animals

• Bradycneme
• Magyarosaurus
• Lizard
• Pterosaur
• Hatzegopteryx
• Aublysodon (identified as Zunityrannus or Suskityrannus in the narration)
• Nothronychus
• Oviraptor
• Alectrosaurus
• Gigantoraptor