Most ancient species exists?

[Three Trees]

What's the most ancient fish that still exists today?

 

[WhiteLineRacer]

Well not including Oddball's Lancelet, which has no backbone and I think he said fossils dated back 650million years the Coelacanth dates back 400 million years has a backbone and is swimming our seas today also.

http://www.dinofish.com/

 

[michael]

Aros, gars, polypterus, etc

 

[dredcon]

The oldest group of fishes with surviving species has got the be the hagfish.

 

[USMCtanker]

The oldest group of fishes with surviving species has got the be the hagfish.

whats that u have a pic

 

[Oddball]

Here's a primitive pacific hagfish:

 

[limz_777]

lungfish?

 

[fishnthings]

coelcanth... come on dont get ewurm started

 

[Dozer0011]

Those hagfish have an interesting defense mechanism.......they produce mass quantities of thick slime. Not a good aquarium fish.

some interesting facts

 

[davo]

what is the crustaceon type thing, that has a shell that is brown and white, and they almost have a squid like body, and they "swim" around, i think due to the air they have and can release into the shell, so they can float. i think they live in a african river system but im not sure. i realise this is a crap description, but i really cant remember the name.