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The most interesting discoveries and events in the paleo world from 2009.
Updated: April 20, 2010
Additions/Comments:
Additions/Comments:
Other ruling reptiles: Anurognathus | Pterodaustro | Macroplata
PROFILE |
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| Name means: | "Swollen lizard" | |
| Name pronounced: | TIE-low-SOAR-us | |
| Species: | T. proriger, T. nepaeolicus | |
| Named by: | Marsh, 1896 | |
| Size: | 12m (40ft) | |
| When: | Cretaceous (Maastrichtian) | |
| Distribution: | Texas, USA to Alberta, Canada | |
| Classification: | Squamata | Varanoidea | Mosasauridae | |
Tylosaurs were a very successful group of large mosasaurs, living in the late Cretaceous about 88 to 78 million years ago. Tylosaurs grew to be quite large, with some individuals reaching lengths of 15 metres or more.
©2006 Triebold Paleontology
They were apparently distributed worldwide since their fossils are found in North America, Europe, New Zealand and most recently from as far south as Antarctica.
One of the first specimens from Kansas to be exhibited is still on display at the American Museum of Natural History.
Tylosaurs had a heavy rostrum (premaxilla) that extended beyond their front teeth, leading some paleontologists to believe that the structure may have been used for ramming their prey, or in fights with other mosasaurs.
Preserved stomach contents indicate that tylosaurs preyed on many varieties of smaller animals, including other mosasaurs and plesiosaurs.
Tylosaurus skeleton by Samuel W. Williston
EXPLORE
Nobu Tamura BOOKSHELF
Chased By Sea Monsters
by Nigel Marven and Jasper James
Following the hugely successful Walking with Dinosaurs and Walking with Prehistoric Beasts, DK dives into the past to swim with prehistoric reptiles and mammals in Chased by Sea Monsters. Exploring the underwater world where he "encounters" amazing creatures, Nigel Marven presents a unique record of a lost world never revealed before now.
by Nigel Marven and Jasper James
Following the hugely successful Walking with Dinosaurs and Walking with Prehistoric Beasts, DK dives into the past to swim with prehistoric reptiles and mammals in Chased by Sea Monsters. Exploring the underwater world where he "encounters" amazing creatures, Nigel Marven presents a unique record of a lost world never revealed before now.
Giant Sea Reptiles of the Dinosaur Age
by Caroline Arnold
Grade 3–6—More than 220 million years ago during the Triassic period, ichtyosaurs, plesiosaurs, and mosasaurs were the largest marine reptiles. Readers learn what is known about these massive creatures and how scientists are continually making new discoveries based on fossil remains throughout the world.
by Caroline Arnold
Grade 3–6—More than 220 million years ago during the Triassic period, ichtyosaurs, plesiosaurs, and mosasaurs were the largest marine reptiles. Readers learn what is known about these massive creatures and how scientists are continually making new discoveries based on fossil remains throughout the world.
Sea Dragons: Predators Of The Prehistoric Oceans
by Richard Ellis
Acclaimed illustrator and author Ellis conducts an exhaustive and generously illustrated survey of what paleontologists know about these monsters of the deep.
by Richard Ellis
Acclaimed illustrator and author Ellis conducts an exhaustive and generously illustrated survey of what paleontologists know about these monsters of the deep.
Oceans Of Kansas: A Natural History Of The Western Interior Sea (Life of the Past)
by Michael J. Everhart
Michael J. Everhart tells the fascinating story of their discovery, re-creates the animals and the world in which they lived, and presents the fruits of the latest research into the natural history of America’s ancient inland sea.
by Michael J. Everhart
Michael J. Everhart tells the fascinating story of their discovery, re-creates the animals and the world in which they lived, and presents the fruits of the latest research into the natural history of America’s ancient inland sea.
Sea Monsters: Prehistoric Creatures of the Deep
by Michael J. Everhart
Featuring incredibly realistic computer-generated images and 3-D film clips—with 3-D glasses—field photography by National Geographic cameramen, and much more, the book interweaves dramatic scenes of the far, far distant past; up-to-the-minute scientific profiles of nearly two dozen sea monsters; and a group portrait of the eccentric Sternberg family, Kansas-bred pioneers of marine paleontology.
by Michael J. Everhart
Featuring incredibly realistic computer-generated images and 3-D film clips—with 3-D glasses—field photography by National Geographic cameramen, and much more, the book interweaves dramatic scenes of the far, far distant past; up-to-the-minute scientific profiles of nearly two dozen sea monsters; and a group portrait of the eccentric Sternberg family, Kansas-bred pioneers of marine paleontology.
