Deuterostome characteristics
 
Echinoderm characteristics
 
Chordate characteristics (4)
 
Chordata subphyla (3)
 
Urochordata: characteristics
 
Urochordata: common names
 
Cephalochordata: characteristics
 
Cephalochordata: common names
 
Chordate clades
 
Craniates
 
Vertebrates
 
Agnatha
 
Myxini
 
Myxini: common names, characteristics
 
Cephalaspidomorphi
 
Cephalaspidomorphi: common names, characteristics
 
Gnathostomes
 
Evolution of Jaws
 
Placodermi
 
Chondrichthyes: characteristics, examples
 
Osteichthyes
 
Actinopterygii: characteristics, examples
 
Actinistia: characteristics, examples
 
Dipnoi: characteristics, examples
 
Origin of Tetrapods
 
Amphibia
 
Amniotic egg: characteristics
 
Reptilia
 
Aves
 
Origin of birds
 
Mammalia
 
Monotremes
 
Choriovitelline placenta
 
Marsupials
 
Eutherian mammals
 
Chorioallantoic placenta