1. Claddis::day_2016
    Character-taxon matrix from Day et al. 2016
    cladisticMatrix
  2. Claddis::gauthier_1986
    Character-taxon matrix from Gauthier 1986
    cladisticMatrix
  3. Claddis::michaux_1989
    Character-taxon matrix from Michaux 1989
    cladisticMatrix
  4. strap::Asaphidae
    Phylogeny and age data for the Asaphidae
  5. strap::Dipnoi
    Phylogeny and age data for dipnoans (lungfish)
  6. strap::UKzones
    British regional stages for the Ordovician