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In the Cretaceous period there were only the non-crested hadrosaurs living in
this corner of the continent, but later the crested forms migrated here from further
east - pan of the great spread of the hadrosaurs over the northern continents.
Like the hadrosaurs before them, there are two main groups of sprintosaur, the
crested, and the non-crested. The crested sprintosaurs tend to inhabit the
western high prairies, grazing the short grasses and undergrowth of prickly pear
cactus in ...
The brightly coloured head crest is used for signalling during the mating season.
The hand left, can be used for walking (two h(x>ves), for grasping ( two fingers)
and for fighting (thumb spike). Velludorsum venerium Like a big lizard, 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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