article: Chordate
links: Teleost Synapsida Genome William Bateson Craniata Cephalaspidomorphi Sauropsida Myxini Conodonta Cephalochordata Acanthodii Actinopterygii Mammalia Placodermi Amniota Aves Agnatha Ediacaran Amphibia Tunicata Vertebrata Gnathostomata Thaliacea Sarcopterygii Chondrichthyes Osteichthyes Pteraspidomorphi Tetrapoda X-ray tetra