Refer NCERT . It has a tabular form of the basic features and there occurence in different invertebrates. It’s not possible to type it here,if you don’t find a good tabular version, try making one yourself. Write the names of the phylum of the horizontal side of the page, the character being described in the vertical side of the page, and go through each feature carefully and it’s occurence in different phyla and note it down. Lastly, some unique features of each phyla, eg cnidoblast cells of coelentrata. note these down separately.
this should help you :)