Types of Fish-Animal Classification

Fish are in the animal kingdom, and are in the phylum chordata.

In addition, Fish have a notochord, tubular nerve chord, and some type of a gill

In this video I would like to talk about three categories of fish.
The jawless fish, the fish that have flexible bones made of cartilage and the boney fish.

Agnathan are jawless fish and lack paired fins. They also lack an internal skeleton system.
They have a strange circular mouth.
Common examples include the hagfish and the lamprey

Chrondrichthyes
These fish have flexible bones made of cartlilege
The most common examples are sharks and rays.
This group of fish contain some very fierce predators.

Osteichthyes are fish that have calcified bones similar to our bones.
They have paired gills and scales
They live in fresh and salt water.
Here are some common examples.

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[brisslefish]

Holy Jesus the pronunciation of the classes is terrible. Bony fish/osteichthyes is said (os tee ick thees) and the cartilaginous fish/chondricthyes is said (con drick thees).

[indyreno]

Fish are an informal and paraphyletic grouping of vertebrates and do not form any natural grouping, they are shown to be classified within six different classes: Myxini (Hagfish), Petromyzontida (Lampreys), Holocephali (Chimaeras), Elasmobranchii (Sharks and Batoids), Actinopterygii (Ray-Finned Fish), and Sarcopterygii (Lobe-Finned Fish), surprisingly lampreys are more closely related to jawed vertebrates than to hagfish, sharks and batoids are more closely related to bony vertebrates than to chimaeras, and lobe-finned fish are more closely related to tetrapods than to ray-finned fish.

[unknown_fan]

you have nothin to see here you just tired yourself