Rhinocerotoidea

Rhinocerotoidea (order Perissodactyla, suborder Ceratomorpha) A superfamily that comprises the rhinoceroses and their relatives, grouped into the families Hyracodontidae, Amynodontidae, and Rhinocerotidae.They are believ...

The Largest Beasts to Walk the Earth
It seems that at least once a year, news of the “largest dinosaur ever found” makes headlines. That’s because almost all the contenders for the biggest saurian are so fragmentary that...

Hyaenodontidae

1. Thinocyon 2. Megistotherium 3. Hyaenodon 4. Sinopa 5. Tritemnodon

Hyaenidae

1. Adcrocuta 2. Hyaenictitherium 3. Pachycrocuta 4. Protictitherium 5. Ictitherium

Pinnipeds
1. Acrophoca 2. Allodesmus 3. Aivukus 4. Enaliarctos 5. Thalassoleon
One popular hypothesis suggested that pinnipeds are diphyletic (descended from two ancestral lines), with walruses and otariids sharing a recent common ancesto...

Mesonychids (Mesonychia)

Mesonychia is a group of archaic hoofed mammals present in the Paleocene and Eocene of Asia, Europe, and North America.They are generally considered to be cursorial, Hyaena-like, scavenging carrion-feeders. M...

Homotherini

Homotherini is an extinct tribe of carnivoran mammals of the family Felidae.The tribe is commonly known ascimitar-toothed cats.These saber-toothed cats were endemic to North America, Europe, Asia, Africa, and South America f...

Saber-toothed cats

A saber-toothed cat (alternatively spelled sabre-toothed cat), also misleadingly known as a saber-toothed tiger, is any of various groups of predatory mammals that were characterized by long, curved saber-shaped ca...

Dogs

1. Borophagus 2. Cynarctus 3. Aelurodon 4. Osteoborus 5. Epicyon

Caniformia
Carnivorans evolved from miacoids about 55 million years ago (Mya) during the late Paleocene.Some five million years later, the carnivorans split into two main divisions: caniforms (dog-like) and feliforms (cat-like).They soon ...

Jaguars

The genus Panthera probably evolved in Asia between six and ten million years ago.The jaguar is thought to have diverged from a common ancestor of the Panthera at least 1.5 million years ago and to have entered the American cont...

Felids

The biological family Felidae is a lineage of carnivorans colloquially referred to as cats. A member of this family is also called a felid or feline.The term "cat" refers both to felids in general and specifically to domestic cat...