- Claddis::day_2016Character-taxon matrix from Day et al. 2016
- Claddis::gauthier_1986Character-taxon matrix from Gauthier 1986
- Claddis::michaux_1989Character-taxon matrix from Michaux 1989
- strap::AsaphidaePhylogeny and age data for the Asaphidae
- strap::DipnoiPhylogeny and age data for dipnoans (lungfish)
- strap::UKzonesBritish regional stages for the Ordovician