Sarcopterygiilobe-finned fishes and terrestrial vertebrates


    • round-tailed ground squirrel
      Spermophilus tereticaudus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus
    • thirteen-lined ground squirrel
      Spermophilus tridecemlineatus