Qixia 1
Qixia is the earliest ocean overlord discovered by scientists at present, which appeared in Cambrian 530 million years ago. According to fossil specimens, scientists infer that this is a 2.3-meter-long creature. Its prominent eyes can help find more prey. It is speculated that each eye has more than 1600 lenses, so you can imagine how sensitive its vision is.
2. Dungeon fish
The length of the underground city can exceed 1 1 m, crushing all the marine life before it. Its big mouth is its important weapon, and its bite force is the largest among prehistoric marine creatures found at present, reaching 5 tons, which is terrible. There were already sharks in the ocean at that time. All the fish, including sharks, and even other similar species are on the menu of dungeon fish.
3, including lungfish
Lungfish basically belongs to the same era as dungeon fish, and it is also a marine killer of Devonian. One advantage of lungfish over dungeons is that it has offspring and is a living fossil in the animal kingdom. Devonian lungfish is 6-8 meters long and weighs more than 2 tons. Similarly, sharks are also listed as one of the delicacies of lungfish.
4. Spiral toothed shark
It was a monster from Permian to Triassic, and successfully led the shark family to fight their way out in the ocean, occupying the top throne of the food chain. The most special thing about spiral toothed sharks is that the teeth on their jaws are arranged like circular saws, which makes people shudder. And its 7.5- 15-meter-long giant body also makes it fearless in the face of any creature.
5. Swordfish
This is a creature that lived in the late Cretaceous, that is, it once lived with dinosaurs. This kind of fish is about 5 meters long, and its teeth may all reach 30 centimeters, which can be said to be very scary. Swordfish have a wide range of foods and eat everything. Scientists even found 1.8 meters long gill gland fish in its abdomen, and found many other fish.