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Chordates - Coggle Diagram

- - - - Anaspida - Shieldless - Benthic, Sediment detritivores
      - Thelodonts - Suprabenthic - Hypocercal tail, where the stomach began to develop
      - Pteraspidimorphs - Wing shield fish, Filter feeders, benthic fish
      - Osteostracomorphs - Bony plate fish, epicercal tail, beginning to generate lift and move from that benthic lifestyle, Ossification begins. Complex brain
  - - - Myxinimorph
        
        hagfish
        
        No eyes
        
        1-16 gills
        
        Slime Proteins
        
        Iso-osmotic, Only exist in saltwater, No mechanism for blood ion control
      - Petramyzontimorph
        
        Lamprey - Eyes, 7 gills, 2 dorsal fins, keratinised teeth
    - - Extinct Classes
        
        Placoderms - Armoured Fish
        
        Cranial vertebral joint
        
        Strong bite, non regenerative jaw
        
        heavy Armour
        
        Acanthodi - Spiny Sharks
      - Extant Classes
        
        Chondreichthyes
        
        Elasmobranchi
        
        Neoselachians
        
        Batoids
        
        Rays and skates - Rajiformes
        
        Selachians
        
        Lamniformes and charcharhiniformes
        
        5- 7 Gills, Oil accumulation in liver for buoyancy, pelvic claspers, spiracles
        
        Slightly hyperosmotic
        
        Holocephali
        
        Chimera
        
        Lower jaw biting, fused to cranium
        
        Loss of endoskeletal ossiffication of the endoskeleton
        
        Osteichthyes
        
        Sarcopterygians
        
        Coelocanthimorph
        
        Coelocanth
        
        Dipnotetrapodomorph
        
        Dipnomorphs
        
        Lungfish
        
        Tetrapodomorphs
        
        Amphibians
        
        1 more item...
        
        Cosmoid, fusion of placoid scale
        
        Actinopterygians
        
        Cladistia
        
        Chondrostei - Sturgeon and paddlefish
        
        Neopterygians
        
        Lepidosteiriformes - 7 Species, gar
        
        Amiiformes - 1 Species
        
        Teleosts
        
        Otocephala - Freshwater predominantly
        
        1 more item...
        
        Marine
        
        2 more items...
        
        Scales - Ganoid, Elasmoid - Ctenoid and Cosmoid, scaleless.