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

The discovery of a 480-million-year-old sponge in China has revolutionized scientists’ understanding of early reef ecosystems ...

Learn more about the time period that took place 488 to 443 million years ago. 3 min read During the Ordovician period, part of the Paleozoic era, a rich variety of marine life flourished in the ...

International scientists have uncovered the oldest known phosphatic stromatoporoid sponge, dating back approximately 480 ...

This time period took place 359 to 299 million years ago. 3 min read The Carboniferous period, part of the late Paleozoic era, takes its name from large underground coal deposits that date to it.

Around 370 million years ago, Earth gradually descended into ... the two periods of time that made up the end of the Paleozoic era. First, it led to the creation of iconic "coal forests" full ...

International scientists have uncovered the oldest known phosphatic stromatoporoid sponge, dating back approximately 480 ...

Lake Champlain's Isle La Motte is rich in marine fossils, some of which are 450 million years old. Robert Lyons Nelson Fisk, who was Vermont's lieutenant governor from 1896 to 1898, was also the ...

They were especially important during the middle Paleozoic era (from the late ... emerged suddenly in the late Darriwilian period (around 460 million years ago), leading to questions about their ...