What are some paleogenic organisms?

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Paleogenic period is a geological period that has been extending since 65.5 million years when dinosaurs were fired asteroid for 23 million years, when the period was closed by an extended episode of global cooling. Compared to the present, the Palogene was warm time, and as such is sometimes called the "continuation of the mesozoic, but with mammals".

As during the mesozoic, during Paleogen the world was warm, without polar ice caps and dense forests spread further north and south, places like Wyoming. Paleogen had high sea levels, but not as high as during the chalk in front of it, and with the exception of the floods of large parts of Central Eurasia, the continent configuration was almost the same as today) and large sea reptiles (Plesiosaurs, Mosasaurs, etc.) unlike gigantic dinosaurs. Small, with nothing more than a bear and much smaller, the size of cats. Larger mammals, as well as the ancestors of the rhinoceros, evolved in the middle of the period.

Many groups that dominated Paleogen is extinct today. The Cougar animal mesonychia is considered a leading gadget or a predator of an early Palogen. At the beginning of the paleogen, cats, pigs and whales developed. In the middle of paleogen, bats, the predecessors of elephants and eohippus, the first horse, developed. At the end of the period, rodents and the first primates developed together with Condylarths, who are considered to be ancestors of modern hoof herbivores. Various early rotations of animals such as a horse, such as Propalaeotherium , whose evolutionary lines died out without leaving any offspring, developed during this period.

In the sky, birds were busy with the work of taking a niche left by the death of pterosaurs. Birds have evolved into a series of fantastic colors, shapes and sizes, until the end of the period reaching a level of diversity similar to today's. In the oceans, with the death of amonites, the predominant molluscsHe became an octopus, while sharks grew into diversity and numbers to deal with niches that remain an empty demise of large sea reptiles. They soon joined the whales that reached tens of millions of years before they achieved their current size.