Sarcopterygiilobe-finned fishes and terrestrial vertebrates


    • European ground squirrel
      Spermophilus citellus
    • Columbian ground squirrel
      Spermophilus columbianus
    • Columbian ground squirrel
      Spermophilus columbianus
    • Columbian ground squirrel
      Spermophilus columbianus
    • Franklin's ground squirrel
      Spermophilus franklinii
    • golden-mantled ground squirrel
      Spermophilus lateralis
    • golden-mantled ground squirrel
      Spermophilus lateralis
    • golden-mantled ground squirrel
      Spermophilus lateralis
    • golden-mantled ground squirrel
      Spermophilus lateralis
    • golden-mantled ground squirrel
      Spermophilus lateralis
    • golden-mantled ground squirrel
      Spermophilus lateralis
    • golden-mantled ground squirrel
      Spermophilus lateralis
    • golden-mantled ground squirrel
      Spermophilus lateralis
    • golden-mantled ground squirrel
      Spermophilus lateralis
    • golden-mantled ground squirrel
      Spermophilus lateralis