To tame an animal you must place the hatched egg of said animal on the ground and a baby dinosaur/creature. Shift-right clicking with the hatched egg on the ground will result in the animal placed on the ground to not be tamed (Note: if it is a non-imprintable creature, don't bother shift-right clicking).[]
Imprintable creatures[]
Dilophosaurus (Defends you / attacks on command)[]
Gallimimus (Defends you / attacks on command)[]
Parasaurolophus (Doesn't defend you or attack)[]
Triceratops (Defends you / attacks on command)[]
Velociraptor (Defends you / attacks on command)[]
Microraptor (Doesn't defend you or attack)[]
Mussaurus (Doesn't defend you or attack)[]
Procompsognathus (Doesn't defend you or attack)[]
Non-imprintable creatures[]
Brachiosaurus (due to lack of parental care and bonding with offspring)[]
Tyrannosaurus (due to short temper and aggressive lifestyle)[]
Coelacanth (due to low intelligence)[]
Spinosaurus (due to short temper and aggressive lifestyle)[]