Here is a list of five largest animal that ever lived on earth , and are classified based on the type.

1. Flying Insects Spoiler for Greatest of All Time : 

 Meganeuropsis Permiana 

 
Permiana Meganeuropsis fossil was first discovered in 1937 in Elmo , Kansas . This animal is a flying insect of all time and lived 300 million years ago . Length : 43cm Wingspan : 70cm Weight : 0.5 kg 

2. Anthropod Greatest of All Time

 Arthropleura 

 
Arthropleura ( in greek means rib joints ) have a relatively long size for a centipede , and above lived in the Carboniferous ( 340-280 million years ago ) in place where now the North American continent and Scotland . These animals are known as the largest land invertebrate of all time . Length : 2.5 m Weight : 500 kg 

 

3. Snake Greatest of All Time :

 Titanoboa 

 
Titanoboa meaning " titanic boa " , is a genus of snake that lived about 60-58 million years ago , during the Paleocene era , 10 million years after the extinction of the dinosaurs . And the species is the famous snake Titanoboa cerrejonensis which is the largest , longest and heaviest ever lived and replaces the previous record holder , Gigantophis . Length : 15 meters Diameter : 1 meter 

 
4. Predator Army Greatest of All Time : 

 Spinosaurus

 
Spinosaurus ( meaning " finned lizard " ) is a genus of theropod dinosaur that lived in what is now North Africa , live in the Cretaceous , about 112-97 million years ago . Length : 18 meters Weight : 9 ton 

 

5. Fish Reinforced Rawan & Predator Air Greatest of All Time :

 Carcharodon Megalodon

 
C. megalodon is regarded as one of the largest and most powerful predators in the history of vertebrates , Megalodon was a giant prehistoric shark species that lived about 28 to 1.5 million years ago . This shark is larger than a cruise ship . His name itself means " big tooth " , Descendants near this shark is white shark . Length: 20 meters Weight : 103 tons