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Paleozoic Era - Coggle Diagram
Paleozoic Era
Manifestations of life
jawless fishes (hagfish).
shelled organisms Examples: Trilobites.
plants with a vascular system
scorpions and millipedes
fishes like sharks and bony fishes.
lobe-finned fishes Example: coelacanth
giant cockroaches and dragonflies
Reptiles
synapsids (ancestors of mammals)
diapsids (gave rise to the dinosaurs)
Periods of the era
Devonian Period
Silurian Period
Carboniferous Period
Permian Period
Ordovician Period
Cambrian Period
Most important geological events
Cambrian explosion
The formation of Gondwanaland, Laurasia and Pangaea
Global temperatures
Approximate duration
550 -250 million years ago