"Heterococcoliths"
Count: -
   "Placoliths"
  Count: †3o10f63g
     Order †Podorhabdales Rood et al. (1971)
    Count: †7f42g
       Family †Biscutaceae Black (1971)
      Count: †9g
         Genus †Boletuvelum F.H. Wind & S.W. Wise, in S.W. Wise & F.H. Wind (1977)
        Count: -