Page 35 - The Dinosaur Book and Other Wonders of the Prehistoric World (DK-Smithsonian)

These long, sharp spines
were probably used for defense.
Ottoia’s thorny mouthparts
were used to seize small prey and
even members of its own species. Wiwaxia Built to survive

Ottoia

Waptia

The long antennae
may have detected
food in the water.

Seven pairs of
stiff spines protected the
long, wormlike body. Armor plates

Hallucigenia nine plated tentacles attached
Echmatocrinus had up to

to the top of its body.

The flexible legs were
like those of a modern
velvet worm.
Eyes
Opabinia

This trunklike
feature was used
for catching prey.

Echmatocrinus

rocks of this are preserved in rocks such as Canada’s
age shows that a wide Burgess Shale. Creatures like Ottoia and the
variety of new animals appeared shrimplike Waptia are similar to modern
at the same time. This is known as the animals, but others, including Opabinia,
Cambrian explosion. Soft-bodied animals like were so odd that we are still not sure
the burrowing worm Ottoia thrived too, and how they functioned. 33

US_032-033_Built_to_survive.indd 33 10/04/18 3:32 PM