What Phylum Do Birds Belong To?

What Phylum Do Birds Belong To?

All species of birds belong to the phylum Chordata. Animals in the Chordata phylum share many traits as embryos; however, these traits can disappear by birth, allowing for great diversity in the phylum.

Chordata embryos all contain a notochord, some form of a hollow nerve cord, pharangeal slits and a postanal tail. Mammals, bony and cartilaginous fish, reptiles and amphibians are all considered Chordata.

Birds are distinguishable from other Chordata by the presence of feathers; however, most bird species also have scaly feet, light bones for flying, and particularly good vision. Experts believe birds, rather than reptiles, are the descendants of dinosaurs.