Takes a tour of the Earth three hundred and twenty million years ago, during the Paleozoic Era, and investigates the plants and animals found there.

Takes a tour of the Earth three hundred and twenty million years ago, during the Paleozoic Era, and investigates the plants and animals found there.

Take a fun, fact-filled trip back to Earth as it was 430 million years ago. Then, watch as continents drift and oceans take shape. Watch out (!) as fish get too

In the style of WHEN BUGS WERE BIG and WHEN FISH GOT FEET this book discusses all the exciting developments of the Triassic Age, from the recovery of the planet

Illustrations and nimble prose bring these ancient creepy-crawlies-and their tamer relatives- to life with scientific detail.