Animal Phylums with the Most Species
I suspect that 20, 000 extinct is actually much higher.
Number of species: 1,250,000+ extant and 20,000+ extinct
Also known as Arthropods
Number of species: 85,000 + extant and 80,000+ extinct
Also known as Mollusks
This is our phylum. This phylum consist of all Mammals, as well as all Reptiles, Amphibians, Birds, and Fish. 90% of the time, if you're asked to think of an animal off the top of your head, it's going to be in this phylum.
As well as vertebrates it also includes Tunicates which are sea squirts and scalps
Also known as Chordates
Also known as Flatworms
Also known as Roundworms
Number of species: 25,000
Also known as segmented worms
Number of species: 17,000 + extant
Also known as Cnidarians
Number of species: 10,800 extant
Also known as sponges
Also known as Echinoderms
Also known as Moss animals
Number of species: 6,000 extant