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Rocks that formed in the sea, such as limestones and chalk, contain the fossils of
sea reptiles like plesiosaurs and mosasaurs, the ubiquitous pterosaurs, and
invertebrates like the tentacled shellfish, the ammonites. Then there is a break in
Emphasis is placed on the 'land-living' part of the description. The sea reptiles of
the time - the long-necked plesiosaurs, the whale-like pliosaurs, the dolphin-like
ichthyosaurs, the sea- lizard mosasaurs, and all the turtles - were not dinosaurs.
Plesiosaurns skeleton The paddle-limbed plesiosaurs were the most successful
of the sea reptiles, longer-ranging than the fish-like ichthyosaurs. There were two
main lines of plesiosaur evolution - the long- necked elasmosaurs, and the ...
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The new dinosaurs: an alternative evolutionUser Review - Not Available - Book Verdict
Many sf writers have created worlds where dinosaurs still walk the earth, but Dixon's new book pursues the premise in the most realistic way yet. In After Man: A Zoology of the Future (LJ 10/15/81 ... Read full review
the new tree of life
the new dinosaurs
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