Dinosaurs

Living Dinosaurs

Written by Sarah J. Keller

Copyright 2001 Isaveatree.com

ISBN 0-9714299-0-1 (50 Book Set)

Table Of Contents

Fossils……………………………….....4

Oldest fossils…………………………..8

First land animals………………..…..12

Bird dinosaurs………………………..18

Glossary………………………………24

Index…………………………………..25

Books to read and web sites to visit…26

2.

Everything we know about dinosaurs comes from their fossils. Fossils are the remains or tracesdead plants and animals from millions of years a

of

go. We find fossils in stone buried millions of years ago.

4.

Some scientists say there are still many dinosaurs alive today. Many plants and animals alive today were also alive when the dinosaurs roamed this earth.

6.

Animals without backbones formed the oldest known fossils. They are much like the jellyfish, sponges, and snails that live around us today.

8.

The earliest fossils of fish look very much like Lampreys. They had small mouths with no jaws. They also had gills for breathing.

10.

The first land animals were amphibians that looked very much like our modern day frogs, toads, and salamanders. They could live in water and on land.

12.

Some of these early amphibians probably evolved or slowly turned into reptiles. Tortoises and lizards shared the earth with the earliest dinosaurs.

14.

About 200 million years ago, the earliest crocodiles were born. They belonged to a group of dinosaurs called archosaurs, which means "ruling reptiles".

16.

Many scientists think that birds are really dinosaurs. The skeleton of a bird looks like that of an ancient dinosaur. Fossils were found that directly link a modern bird to a dinosaur.

18.

The Hoatzin bird in South America looks like a bird that lived millions of years ago. For the first months of its life it has dinosaur claws. As it grows the claws disappear.

20.

Scientists like to call these earliest animals living fossils. These animals give scientists the chance to study the bodies and habits of animals that are very much like animals of dinosaur times.

22.

Index Amphibians, 12

Archosaurs, 16

Crocodiles, 16

Early amphibians, 14

Fossils, 4, 18

Gills, 10

Hoatzin bird, 20

25.

Glossary

Amphibian – animal that lives on land and in water Archosaurs – dinosaurs that were the ruling reptiles Evolved – slowly changed Fossils – remains of plants and animals from millions of years ago Gills – the body part with which fish and other water animals breathe Hoatzin bird – has dinosaur claws its first fewmonths Link – something that joins or connects two things Roam – to travel over or through a place

24.

More Great Books To Read

Title: Komodo Dragons Author: Thane Maynard Publisher: Childs World Copyright: 1997 Title: Dinosaurium Author: Barbara Brenner Publisher: Bantam Books Copyright: 1993 Title: The Last of the Dinosaurs Author: Steve Parker Publisher: Grolier Educational Copyright: 2000

Websites

Link 1 Link 2

26.

Credits

Sarah Keller – Author Douglas Meyers- Technology Director Dan Mader- Art Director / Illustrator Robert Rance - Photo Selections Robert Rance - Audio Engineering Robert Rance – Research

Photo Credits

Some images in collection 1 (50 book set) www.arttoday.com I save a tree reserves the right to change photos at any time