Incluye bibliografía e índice CONTENIDO: Introduction -- Concepts, premises, and pioneers, Photochordates and the origin of craniates -- Parade of the craniates in time and taxa -- Early craniate morphogenesis -- Integument -- Mineralized tissues: an introduction to the skeleton -- Vertebrae, ribs, and sterna -- Skull and visceral skeleton -- Girdles, fins, limbs, and locomotion -- Muscles -- Digestive system -- Respiratory system -- Circulatory system -- Urogenital system -- Nervous system -- Sense organs -- Endocrine organs.