Fish Evolution Part 2. * Fish were the first vertebrates * Tunicates link the invertebrates and vertebrates.
The parade of the Craniates Part 1. Major synapomorphies of the Craniates 1.Developmental Neural crest Neurogenic placodes 2.Nervous System Above Braincase.
Myxopterus Devonian invertebrate Predator That potentially preyed on ostracoderms.
