JD

Deuterostome Phylogeny

  1. Echinodermata:

    • -Sea star

      -Sea urchins

      -Sea cucumbers

      -Sand dollars

      -Brittle stars

  2. Echinodermata

    • -Coelomate

      -Pentaradial symmetry in adults

  3. Urochordata

  • Tunicates

    -sessile adults

    -larvae have all 5 vertebrate characteristics

    -filter feeders

  1. Cephalochordata

  • Sea lancelets

    -retain all 5 vertebrate characteristics for life

  1. Agnatha/Cyclostomata

    • -Lampreys

      -Hagfish

      1. Agnatha/Cyclostomata

    • -Jawless

      -Cartilaginous