After the extinction of prehistoric animals, will there still be prehistoric animals living somewhere without being discovered by humans? Where is that?

Also, so far, human exploration of the ocean only accounts for 5% of the whole ocean, so there is the greatest possibility of prehistoric animals in the ocean. Moreover, there are data, such as coelenterates, sharks, crocodiles and so on. About 99% of the creatures that once appeared are extinct (what a pity). The following may help you:

1.Baculites is an ammonite mollusk. The shell of this animal is a special straight rod, which can grow to 1 meter. Some paleontologists believe that they live vertically in water, and their tentacles look for food on the seabed; Others think they live by the sea.

It has a shell without spiral, so it is also called ammonite. Chrysanthemum stone is an extinct marine invertebrate. It first appeared in the early Devonian of the Paleozoic (about 400 million years ago), flourished in the Mesozoic (about 225 million years ago), and was widely distributed in the Triassic oceans around the world, and disappeared at the end of the Cretaceous (about 65 million years ago).

2.bananogmius is a prehistoric fish with a flat chin and a plate-shaped jawbone to help them chew their favorite foods-clams and mollusks.

3. Beryllite. It can be inferred from the fossils of these prehistoric fish that they swam in the waters of Europe and Africa in Cretaceous.

Enchodus, with a row of sharp teeth like swords, was one of the fiercest fishes in Cretaceous, and they had a nickname "cuttlefish with saber teeth".

This prehistoric animal, Gillikus, has never been known before, and it is similar to today's silver carp. This Cretaceous fish has very fine teeth, which can be filtered when they eat plankton, just like baleen whales today.

6. The magic dragon has strong skin, long tail and nail-like fangs, and is considered as a prehistoric crocodile.

7.Protostega is more than ten meters long and is one of the largest turtles in history. Although they are huge, they are actually excellent swimmers.

8. The pterodactyl had a wingspan of 25 to 30 feet (8 to 10 meter), which was the longest among extinct and contemporary birds found so far.

9. Squaodon was an extinct member of the family Muridae? ,? Found in the late Cretaceous strata in Kansas. These prehistoric sharks are also called "crow sharks" because of their scavenging habits. Their teeth are very similar to those of tiger sharks today, and it can be guessed that their food is also very similar.

10. Prehistoric squid fossils appear near inland waterways in Australia, Germany and the west (once a huge ocean split North America in two).

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