User:Jtwsaddress42/Projects/Project 1/Sections/Chapter 12/Phase II - The Multicellular Aquatic Ecology (~600 mya)


 * Parenchemella/Phagocytella - Multicellularity with Intracellular Digestion/Germline Sequestration/Active Host Immunity/Shift in Level of Selection
 * Gastrea - Diploblastic Extracellular Digestion
 * Bilateria (570 mya) - Blastopore becomes anterior mouth/Triploblastic/HOX-Cluster defined AP-axis/Head Senses/Cognitive Map
 * Deuterostomia - Blastopore becomes posterior anus/Inversion of the DV-axis
 * Olfactores
 * Chordata (543 mya) - Notochord/Somatic Larva/Visceral Adult
 * Craniata
 * Agnatha (530 mya) - Somato-visceral fusion/Genome Duplication/Neural Crest/Unmyelinated Parasympathetic/Antibody-based Immune System
 * Gnathostoma - Genome Duplication/Trigeminal-Sympathetic System/Jaws/Fins/Myelin