Page 17 - DINOSOUR ATLAS

CrEtaCEous world

, quEtzalCoatlus
The pterosaurs evolved into spectacular creatures
like Quetzalcoatlus, which, with its 46-ft (14-m) wingspan,
was the largest flying animal known to have lived. It probably
soared like an albatross, barely beating its long, narrow wings.
Like all the later pterosaurs, it had a very short tail.

Wings were shaped
like those of a glider

sPinosaurus .
While some hunters had
developed agility and
speed, others like the
huge sail-backed
Spinosaurus had evolved
massive strength.
long Arms
may have helped
catch prey

stout spikes
would deter
most predators

, anKYlosaurus
Many plant-eaters developed heavy armor as
protection against increasingly powerful hunters.
Ankylosaurus was covered with bony spikes, and it
AtlAntic is much could use its heavy tail club as a deadly weapon.
broader today

Fossil broAd
leAves are
found in
Cretaceous rocks

flowErinG Plants .
The Cretaceous saw the appearance of
flowering plants like this magnolia. They were
so successful that they soon dominated the
landscape, and the flowers encouraged
the evolution of new forms of insects.

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