Classes of the Phylum (Division) Chordata sub. Vertebrata infra. Agnatha

Taxonomic information of, and a list of the classes within, the phylum (division); Chordata sub. Vertebrata infra. Agnatha including the number of families in each class

 

A Class is a taxonomic group of related biological units. There are a number of different classes (See list below). Until the early 18th Century, when its place was assumed by the taxonomic group Phylum, it used to be the highest level grouping in the taxonomic naming convention. Even today there are numerous differing opinions relating to its structure and constituent members and with the introduction of more modern naming and grouping systems has become of minor importance.

All higher order animals, including mammals, reptiles, birds and fish 

Phylum

Chordata

Sub Phylum

Vertebrata

Infra Phylum

Agnatha

jawless vertebrates 

Classes of the Phylum Chordata

Alphabetical list of orders within the class

This page displays the Classes within the selected Phylum: Chordata sub. Vertebrata infra. Agnatha. The number of entries in right-hand column indicates the number of Orders of each Class in the level below.

 

Super Class

Class

Subclass

Infraclass

Description

Orders

Conodonta 

 

conodonts

0

Hyperoartia 

 

lampreys

0

Agnatha

lampreys

1

Agnatha

hagfishes

1