There are actually eight: Myxini, Cephalaspidomorphi, Chondrichthyes, Osteichthyes, Amphibia, Reptila, Aves, Mammalia
They are in phylum Chordata. They are chordates.
Fish are in the phyla of Chordata because most fish have backbones.
Dogs are in the Chordata phylum, therefore Pit Bulls are in the Chordata phylum.
Birds belong to the phylum Chordata, specifically the subphylum Vertebrata. This means that birds are vertebrate animals with a backbone.
Chordata phylum
Phylum Chordata.
The phylum of a stingray is Chordata.
The phylum of a dove is Chordata.
chordata/chordates
Cows belong to the phylum Chordata.
The eagle belongs to the phylum Chordata.
A llama belongs to the phylum Chordata.