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Cretaceous

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The Cretaceous period is a geological period in the Mesozoic era. Lasting over 79 million years, from 145 to 66.04 million years ago, it was the longest stage of the Mesozoic era, as well as its final stage.

In Dinosaur Revolution[]

The Survival Tactics episode take us back to this time period by introducing the local fauna of the Cedar Mountain Formation of Utah with a moving turtle that is then picked up by a Utahraptor that is missing its left eye. The raptor, however, is unable to crack the shell, so it throws it away. Later, a pack of Cedarosaurus are on a seasonal migration to find food and water, but are attacked by a pack of Utahraptor. The raptors flock to the hatchling, but another pack of One-Eyed Utahraptor appears and attacks the rival pack in an attempt to steal their prey. The two packs engage in a fight that fails to notice the hatchling moving away. The situation becomes worse when a crocodile attacks it, grabbing its leg. The screams cause the raptors to stop fighting and target the hatchling again, scaring the crocodile at the same time. Suddenly, the pack comes to the aid of the cub, saving him and scaring the raptors, and then resumes the migration once the danger has been averted. In the clash, the one-eyed Utahraptor is thrown into the water and while trying to resurface, is devoured by the same crocodile from which he gouged out his eye.

Now we move to Brazil, 125 million years ago. While dinosaurs ruled the land, another group of reptiles began to rule the skies of our planet. These flying reptiles are called pterosaurs. A mother Anhanguera brings fish to her nest and the hungry chicks fight over it, but to their surprise the mother eats it. It's time for them to learn to fly and the first one starts off well until he looks where he's going and crashes into a cliff, breaking his skull. The second one also starts off well, but is eaten by another Anhanguera. The last one sees a crocodile from above and tries to escape, but his mother throws him out of the nest. On the ground he sees his brother being eaten by crabs. Then a crab comes towards him and nips him on the tail. In revenge he tries to kill the crab, but he doesn't have much luck. Suddenly he has to run for his life when a crocodile starts chasing him. The crocodile chases the pterosaur, ending up in the territory of another crocodile who is about to devour it. Luckily, the young pterosaur starts to fly and the two crocodiles collide and are left empty-handed. As he soars for the first time, the baby pterosaur also kills a crab as a snack. Meanwhile, his mother calls him and, to his surprise, he answers and finds himself eating a crab. However, the mother, disrespectfully, throws him back out of the nest with the baby who has splashed his drool all over him. However, he shows himself ready to face the perils of life as he rises fearlessly in front of the screen.

Moving forward 75 million years, the narrator explains that while dinosaurs dominated the land, other reptiles, such as Mosasaurs, returned to the sea and became the undisputed masters. Quetzalcoatlus fly in the blue sky, while below them lies a vast inland sea that covers what is now the Great Plains of western North America. Underwater, a female Mosasaurus is giving birth. Unlike other reptiles, the Mosasaurus gives birth to her young alive. This means that the babies will be safe from land predators. Two babies are born, who first swim to the surface and catch their breath before exploring the reef. Suddenly, a school of Cretoxyrhina sharks begins to kill the babies. The mother continues swimming through a school of ammonites and does not notice that the sharks are killing her babies. An escaped baby shark calls out to its mother, and luckily, the mother hears its calls and starts to turn around to see what is happening. Eventually, the mother spots the sharks and attacks, killing one in the attack. The mother then quickly kills another shark and hears the call of her last baby shark, swimming over to it and greeting it. Finally, she spots the last shark and quickly kills it. The baby shark gets a free meal and the mother jumps out of the water in victory, and the two swim away while the mother gives birth to more babies.

In Mongolia, in the same million years of the Cretaceous period. An old male Protoceratops, sees Azdarchids flying above him. He then peers down from the edge of a cliff as a family of Protoceratops fight a duo of Velociraptors. One of the raptors is eating the father while the other tries to kill the mother, who is defending her baby. The raptor stabs the mother in the neck with its "sickle claw" and the baby sees its mother die before its eyes. Both predators now want to kill the baby, so they chase it to a cave. Suddenly the lone male appears and he faces the raptors. Although wounded, he grabs one of the predators by the tail and throws it at the other to scare them off. After the fight the male continues on his way while the baby, after seeing the corpses of its parents being eaten by Azdarchids, decides to stay with the old male, even if he has to walk away from him. During the night, the youngster tries to sleep next to the male, but he rejects him. As they continue their journey, the youngster begins to bond with the male, coming to regard him as a second father. As they continue, they are followed by the two Velociraptors, unknowingly. Just as the raptors prepare to kill them, an entire pack of Protoceratops appears out of nowhere and scares them. The youngster decides to join the pack. But the old male can't. Towards evening, the Azdarchids circle above the lone male's head as he heads towards a "Protoceratops graveyard" where he decides to settle down.

On the island of Madagascar, 70 million years ago. A male Rahonavis is introduced as a creature that can mimic the sounds of other animals, like a modern-day Mockingbird. He attracts a giant sauropod called Rapetosaurus, which becomes his ticket to a lunch of insects. The Rapetosaurus, meanwhile, comes to a plain eating some watermelons. Suddenly, a female Majungasaurus arrives on the scene and the raptor barely manages to escape. The abelisaur focuses on the Rapetosaurus, but as the two fight, the raptor comes face to face with two baby Majungasaurus. While they may not look dangerous, they already have the predatory instincts that the Rahonavis knows well, and he quickly escapes by climbing a nearby tree, saving himself from the baby abelisaurs just in time. He then hears the call of another animal and mimics it to lure it to the baby Majungasaurus. Suddenly, a giant tongue comes out of nowhere and captures one of the babies. The culprit is revealed to be a giant frog named Beelzebufo who devours one of the babies in one bite in front of his brother. The baby runs for his life, but is devoured by another Beelzebufo. A pack of Rapetosaurus then arrives and crushes one of the frogs to death, while the other one hops away. The Raptor who has been watching the whole thing gets a free "taxi ride" and sees his world, including the crushed Beelzebufo and the Majungasaurus eating its prey.

In the same million years in Mongolia, a male Gigantoraptor is on a mission to find a mate. His call attracts a female. So the male begins to dance, but the female is not interested. As he continues his dance with a leap, the dinosaur fails to notice that he is disturbing a family of Zalambdalestes, small, mouse-like mammals. As the male continues to dance, the female becomes interested, but the mammals continue to run for their lives underground. The male jumps so hard that his foot gets stuck in the hole and the female walks away, while the Zalambdalestes climb up the dinosaur's foot to get out of the hole. Eventually, the male manages to free himself from the hole. After the dinosaurs leave, the mother Zalambdalestes notices that one of her babies is missing, so she heads underground to retrieve it, which she does. The female Gigantoraptor returns and watches the family leave. The male Gigantoraptor, however, will have to keep dancing if he hopes to start a family, according to the narrator.

The final episode focuses upon 66 million years ago one of the most famous dinosaurs of all time. The Tyrannosaurus rex, being described as a "complex, dynamic and even bird-like" species along with the local flora and fauna in prehistoric Montana. It then goes on to describe the Cretaceous-Paleogene mass extinction, through the Alvarez hypothesis. In the epilogue, a female Troodont is depicted as "the last dinosaur". However, it is explained that "if birds are descendants [of dinosaurs], then we are still living in the age of dinosaurs and the dinosaur revolution continues".

Fossil Locations[]

The episodes explore some location of North America but, some areas being focuses in the other part of world as Madagascar, Asia and Brazil.

Animals[]

Cedar Mountain Formation (Utah)[]

Romualdo Formation (Brazil)[]

Djadochta Formation (Mongolia)[]

Great Plains (North America)[]

Nemegt Formation (Mongolia)[]

Maevarano Formation (Madagascar)[]

Hell Creek (Montana, North America)[]

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