Dictyostelium discoideum
Vaults have been identified in mammals, amphibians, avians and "Dictyostelium discoideum". The Vault model used by the Pfam database identifies homologues in "Paramecium tetraurelia", Kinetoplastida, many vertebrates, a cnidarian (starlet sea anemone), molluscs, "Trichoplax adhaerens", flatworms, "Echinococcus granulosus" and Choanoflagellate.