The asteroid may even have been large enough to cause the volcanism, or the events may have just happened coincidentally at about the same time. ... Mammals evolved during the Mesozoic but there were relatively few species and they were small in size. During the Mesozoic, mammals were most likely food for predatory dinosaurs.
www.windows.ucar.edu/tour/link=/earth/geology/hist_meso... www.windows.ucar.edu/tour/link=/earth/geology/hist_mesozoic.html&edu=high
At the start of the Mesozoic, the continents were all joined together forming one large continent called Pangaea. During Mesozoic time, they pulled apart from ... Likely causes of the extinction event include a large asteroid impact, erupting volcanoes, and climate change. There is evidence that all three of these happened.
www.windows.ucar.edu/tour/link=/earth/geology/hist_meso... www.windows.ucar.edu/tour/link=/earth/geology/hist_mesozoic.html
The Mesozoic Era lasted more than 180 million years. During this time, many modern forms of plants, invertebrates, and fishes evolved. On land, dinosaurs were the dominant animals, while the oceans were populated by large marine reptiles, and Pterosaurs ruled the air. ... We still aren't certain exactly what happened,
www.palaeos.com/Mesozoic/Mesozoic.htm www.palaeos.com/Mesozoic/Mesozoic.htm
It’s been over a century since scientists uncovered the evidence that dinosaurs ruled the animal kingdom during the Mesozoic era, and we’ve been fascinated ever since. But what happened to the dinosaurs? Why did they disappear?
www.carnegiemuseums.org/cmag/bk_issue/1999/marapr/feat2... www.carnegiemuseums.org/cmag/bk_issue/1999/marapr/feat2.htm
Rocks and their contained fossils are a record of what happened during particular time intervals. ... Mesozoic Era Mesozoic Erathem; Jurassic Period Jurassic System; Upper Jurassic Epoch Upper Jurassic Series; Oxfordian Age Oxfordian Stage;
www.wvup.edu/ecrisp/lecture2mesozoic.html www.wvup.edu/ecrisp/lecture2mesozoic.html
So what happened to this Dino Paradise? More change! A mass extinction like those in the Paleozoic ended the idyllic Mesozoic Era (if you can call dodging your friendly local T-Rex as idyllic). More than half of all existing life forms disappeared, including virtually all of ... Image of the Earth during the Mesozoic Era.
www.cotf.edu/ete/modules/msese/earthsysflr/mesozoic.htm... www.cotf.edu/ete/modules/msese/earthsysflr/mesozoic.html
PALEONTOLOGISTS DISCOVER NEW MAMMAL FROM MESOZOIC ERA; News Wire article from: US Fed News Service, Including US State News; 3/14/2007; 700+ words ; ...125 million years ago during the Mesozoic Era, in what is now the Hebei Province...Yixian Formation and is the first Mesozoic mammal recovered from Hebei.
www.encyclopedia.com/doc/1E1-Mesozoic.html www.encyclopedia.com/doc/1E1-Mesozoic.html
Mesozoic means "middle animals", and is the time during which the world fauna changed drastically from that which had been seen in the Paleozoic. Dinosaurs, which are perhaps the most popular organisms of the Mesozoic, evolved in the Triassic, ... Click on the buttons below to learn more about the Mesozoic Era.
www.ucmp.berkeley.edu/mesozoic/mesozoic.html www.ucmp.berkeley.edu/mesozoic/mesozoic.html
Becuase during the time when dinosaurs lived, most of California was covered by the ocean, and any sediments that accumulated in the areas that were dry land have since eroded away. Why do we find dinosaur fossils in areas that were ocean?
www.ucmp.berkeley.edu/mesozoic/cretaceous/ptloma.html www.ucmp.berkeley.edu/mesozoic/cretaceous/ptloma.html
At the very end of the Paleozoic the Therapsida evolved larger brains than their contemporaries, and paved the way for mammalian intelligence during the Mesozoic and Cenozoic. ... What happened then is unclear. The nature of marine ecosystems during the Pennsylvanian and Permian seems to be unsettled, and may have...
www.palaeos.com/Paleozoic/Paleozoic3.html