# Species tree for RF03853
# Generated from Rfam version 15.00
   |
   +--Eukaryota (5)
      |
      +--Metazoa (5)
         |
         +--Chordata (3)
         |  |
         |  +--Cephalochordata (3)
         |     |
         |     +--Branchiostomidae (3)
         |        |
         |        +--Branchiostoma lanceolatum (amphioxus) (1)
         |        |
         |        +--Branchiostoma floridae (Florida lancelet) (1)
         |        |
         |        +--Branchiostoma belcheri (Belcher's lancelet) (1)
         |
         +--Echinodermata (2)
            |
            +--Eleutherozoa (2)
               |
               +--Echinozoa (2)
                  |
                  +--Echinoidea (2)
                     |
                     +--Euechinoidea (2)
                        |
                        +--Echinacea (2)
                           |
                           +--Echinoida (2)
                              |
                              +--Strongylocentrotidae (2)
                                 |
                                 +--Strongylocentrotus purpuratus (2)