The Mesozoic Era extinctions formed the world as we know it today. Read about what caused them and which animals survived.

Exactly which animals ... Era (Triassic Period), many new types of animals evolved to fill the available ecological niches created by a mass extinction event that took place at the end of the ...

Now, the details of features such as the fingertips and belly skin of some animals have been preserved. The Permian period occurred during the last part of the Paleozoic Era. It ended with the ...

What followed was a mysterious, multimillion-year span that could be called the "Great Dulling," when marine animal communities ... Toward the end of the Permian period, Earth was reeling from ...

“NATURE vibrates with rhythms, climatic and dystrophic, those finding stratigraphic expression ranging In period from the rapid ... J urassic Triasic Permian Penrsylvanian Mis,ippian Devonian ...

Stromatoporoid sponges were major reef builders during the Paleozoic era, playing ... across the animal kingdom, providing new insights into how environmental factors influenced biological evolution ...

What followed was a mysterious, multimillion-year period that could be called the “Great Dulling,” when marine animal communities looked strikingly ... respond to environmental changes of the ...