Vertebrates arise during 500 million years ago. The animals have backbones now. Some animals have skeletons are made of just cartilage.
Some plants arrived on land developed from earlier algae. On land their was only moss and mushrooms. The moss evolved into ferns 400 million years ago.
Insects evolved 400 million years ago. They have a special type of hinge in its jaw. The first winged insect lived 400 million years ago. They also have a striking mouth.
Reptiles lived 300 million years ago. The Hylonomus lived about 315 million years ago. Some fossils of reptiles were found in petrified stumps in Nova Scotia.
Amphibians lived about 360 million years ago. The earliest amphibian was found in Greenland. Also the earliest amphibian lived the Jurassic period.
Some plants arrived on land developed from earlier algae. On land their was only moss and mushrooms. The moss evolved into ferns 400 million years ago.
Insects evolved 400 million years ago. They have a special type of hinge in its jaw. The first winged insect lived 400 million years ago. They also have a striking mouth.
Reptiles lived 300 million years ago. The Hylonomus lived about 315 million years ago. Some fossils of reptiles were found in petrified stumps in Nova Scotia.
Amphibians lived about 360 million years ago. The earliest amphibian was found in Greenland. Also the earliest amphibian lived the Jurassic period.