There are far, far too many too list, however, here are a few:
Trilobites: animals similar in appearance to the horseshoe crab, that lived from 526 to 250 million years ago.
Anomalocaridids: long and narrow, invertebrate carnivores that lived from about 500 to 400 million years ago.
Ammonites: invertebrates with a snail-like shell that protected a squid-like body, and floated in the ocean, who lived from 400 to 65.5 million years ago.
Icthyosaurs: marine reptiles that resembled dolphins, or fish, and lived from 245 to 90 million years ago.
Plesiosaurs: marine reptiles with long or short necks, who ate fish and swam with flippers, and lived from 210 to 65.5 million years ago.
Hesperornithes: Fully aquatic birds that lived from 100 to 65.5 million years ago.
Mosasaurs: Huge, carnivorous marine lizards (up to 40 feet long), that lived from 85 to 65 million years ago.
Enchodus (or saber toothed herring): a small to medium predatory fish with two long "fangs," that lived from the late Cretaceous to the Eocene (perhaps 100 to 40 million years ago).
Basilosaurus: a very long and narrow relative of whales, that lived from 40.4 to 33.9 million years ago.
Megalodon: a shark that may have been up to 50 feet long, and lived from 25 to 1.5 million years ago.
There are also a number of prehistoric ocean animals that still exist today, such as:
Sharks and rays: evolved about 416 million years ago.
Coelocanth: a type of fish related to lungfish that evolved about 400 million years ago.
Cephalopods (invertebrates such as squid and octopi): evolved about 400 million years ago.
Barnacles: evolved about 500 million years ago.
Coral (yes, they are animals): evolved about 542 million years ago, although modern coral reefs didn't first appear until about 245 million years ago.
sea horse is the first 1
yes it bring the animal to the top when enriching the top surface of water
Some sea creatures have ansetors of dinosaurs
The definition of the word sea life is a water wear creatures like organisms live in or on top of the body of water
If you mean, "are all under water creatures, sea creatures?" then no. The term SEA is for the ocean and there also can be creatures in freshwater. Also some creatures that live in water such as some snakes and sea turtles come out of the water every so often, so they are no total sea/water creatures. Fish are underwater creatures though.
No there are not any new creatures at miami bech
all the sea creatures are on the bottom of the ocean love dakotah
Dolphins are sea creatures but they are also mammals like whales.
Antarctica is a continent. No sea creatures live on land.
what are the top 50 mhytical creatures
Sea creatures may eat kelp or seaweed, or algae.
Well sea creatures eat bigger or smaller creatures!