Characteristics of Chordata

They have bilateral symmetry.

Chordata have segmented bodies, which include segmented muscles.  

Chordata have a well-developed coelem. 

They have a hollow never cord that usually ends with a brain.

Chordata have a post anal tail at some point in their life.  

They have pharyngeal or gill slits at some points in their life. 

Chordata have a ventral heart, with blood vessels and a closed circulatory system

They have complete digestive system, meaning that they have a different anus and mouth.

They have an endoskeleton made out of either bone or cartalige.

Below is a tunicate, which is an Invertebrate Chordate