| List of Terms | Taxonomic Terms | |
| ancestral primitive teleology notochord muscular postanal tail pharyngeal slits endostyle cranium Hox genes neural crest quadroblastic basal metabolic rate blastopore spiral cleavage radial cleavage paedomorphosis neoteny progenesis heterochrony allorecognition myomeres conodont filter feeding apatite dentine enamel pharynx calcitonin preadaptation zygote embryogenesis organogenesis gastrulation ectoderm endoderm mesoderm neural crest coelom pleuroperitoneal cavity pericardial cavity pharngula integument epidermis dermis hypodermis dermal bone endochondral bone endochondral ossification perichondral ossification cartilage dermal ossification axial skeleton appendicular skeleton vertebrae vertebral skeleton myomeres striated muscle smooth muscle cardiac muscle mouth esophagus stomach small intestine large intestine cecum rectum anus cutaneous respiration ventilation trachea larynx alveolus closed circulatory system amniote nephron hermaphrodite oviparity viviparity peripheral nervous system central nervous system spinal cord sympathetic nervous system parasympathetic nervous system hormone | Chordata Vertebrata Urochordata Cephalochordata Hemichordata Deuterostomata Protostomata Pikia Branchiostoma amphioxus (lancet) tunicate ostracoderm hagfish lamprey Haikouella Coelomata |