Cambrian
A shrimp like creature that is a predator and is 37.8 ft tall
anomalocaris
smaller version of a spinosaurus
dimetrodon
heavily armored
aetosaur
lizard king
tyrannosaurus rex
the bigger version and jurassic version of the dimetrodon
spinosaurus
an athropod that is a shell like animal
trilobite
dinocephaila
a whale like dinosaur
archosaur
due to it's giant foot claw, it is fast
velocoraptor
big club tail
anklyosaurus
another arthropod that is like the anomalocaris
marrella
basin lizard
pelycosaur
extinct clade of anomodonts
dicynodont
similar to a velociraptor, it has a huge hand claw instead of a foot claw
barnyonyx
flying dino
pteradactyl
an eel like animal
pikaia
6 foot long amphibian lizard
eryops
small lightly built basal sauropodomorph
euraptor
the giant carnivore besides a T-Rex
gigantosaurus
three horned
triceratops
crab like squid
kodymirus
stemmed echinoderm
blastoid
first appeared in the late permian
cynodont
a snail squid thing
ammonite
the big boy of the sea
mosasaurus