Undulus asperatus
... that Undulus asperatus is the first new proposed cloud type in over 50 years?
... that <b id="mwCzI"><a class="mw-redirect" href="./Undulus_asperatus" id="mwCzM" rel="mw:WikiLink" title="Undulus asperatus">Undulus asperatus</a></b> is the first new proposed <a href="./List_of_cloud_types" id="mwCzQ" rel="mw:WikiLink" title="List of cloud types">cloud type</a> in over 50 years?