Moeritherium

Moeritherium (Moeritherium trigodon) lived in the late Eocene period also, about 36-33 million years ago. The pronunciation of Moeritherium is Mee ri THEE ree um. They were mammals in the elephant family. They were herbivores and ate sea grass and vegetables in the water. Their closest living relatives are elephants.

Moeritherium were very tall, big, and very strong. The sharks living in the water with them are small, compared to them. Moeritherium were about 70 cm tall at the shoulder. They look like pigs and hippos, but they are related to only elephants.

Dorudon

The Dorudon (Dorudon atrox) is a whale that used to live in the late Eocene period. They were the Basilosaurus's prey. They lived about 41-33 million years ago.

Dorudon were probably carnivores, and they were around 16 feet long. They were big, but not very big compared to the Basilosaurus. The scientists found the fossils in North America, Pakistan, and in Egypt. The Dorudon had sharp teeth and a powerful tail. Dorudon means "spear toothed". They were probably the fastest whales in the Eocene. Their closest living relatives are modern whales. Since they were carnivorous, they ate small fish and little molluscs.

Apidium

Apidium (Apidium moustafai) were small primates that lived in the late Eocene period. They were awesome at leaping. They leap to cross small paths with water in between. They looked a bit like Godinotias. Apidium means "small bull". They lived approximately 36-34 million years ago, when the Basilosaurus lived. They were omnivores that lived in North Africa in the tropical rainforests. They are some fruit, especially the ripe ones, and insects.

They were 25-30 centimetres long, without the tail. When their fossils were first found, scientists thought the fossils were cow or pig fossils. Then they found out that they were actually primates. Their closest living relatives are primates alive today.

Brontothere

Brontothere (Embolotherium andrewsi), also known as Embolotherium and also titanotherium, were big rhino-like beasts. They were 2 times bigger than modern rhinos, and they could be very wild. They were, of course, mammals. They had horn-like crests that were made of their bones. They were used just for show, not for fighting. They were a bit too delicate for that. They were herbivores, and not very smart ones. They were strong, though, and very big. With their strongly built bodies, they can drive off many enemies. Their fossils were found in Pakistan. Their name means " Thunder Beast", and it sounds very true.

Brontotheres were distant relatives of tapirs, horses, and rhinos. They lived approximately 55-30 million years ago. They weighed around 2 tons. Even though they weren't smart, they thrived for a long time.

Basilosaurus

The most feared predator in the Tethys Ocean was the Basilosaurus (Basilosaurus isis). It lived in the late Eocene period and was on top of the ocean food chain. They were 18 metres long; even longer than a blue whale, the biggest whale on Earth now! The average weight for a Basilosaurus is about 60 tons. Like all whales, they are mammals. Scientists think they had white undersides and gray backs. They had 6 fins; one on the back, two tiny ones for mating, one on top, and two for steering. They were blood-curling carnivores that devoured big animals like Dorudon, sharks, Moeritherium, fish, and many more animals. They could eat anything if they were starving, as long as it was meat. They needed 80 kilograms of food a day.

Basilosaurus were 4 times the length of a great white shark. They lived 40-36 million years ago. They were actually descendants of small, furry land animals. They lived in very deep water, where the bigger prey would live in. They are the biggest whales ever recorded. Even though they were violent and carnivorous, they were very magnificent whales.

Leptictidium

The Leptictidium (leptictidium tobieni) was a little, furry mammal that lived in the Eocene period. They lived in Germany approximately 49 million years ago. Their main enemies were the Ambulocetus and the Gastornis, two very formidable predators, which meant they always had to stay alert for the slightest sign of danger. They fed on small creatures, such as bugs and small lizards. They would hop out of their nests and explore around, hunting for prey, until they found a nice meal to bring back to their families.

They usually grew to be 90 centimeters long. Leptictidium were pleasant, agile creatures, but unfortunately they were wiped out when the dense tropical rainforests they depended on were no longer available.