| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Dionididae
Taxonomy
Dionididae was named by Gürich (1907).
It was assigned to Asaphida by Whittington et al. (1997), Jell and Adrain (2002); to Trinucleoidea by Adrain (2011); and to Trinucleida by Bignon et al. (2020).
It was assigned to Asaphida by Whittington et al. (1997), Jell and Adrain (2002); to Trinucleoidea by Adrain (2011); and to Trinucleida by Bignon et al. (2020).