| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Guidonia
Taxonomy
Guidonia is a genus. It is not extant.
It was assigned to Trochonematidae by Erwin (1994); and to Archaeogastropoda by Sepkoski (2002).
It was assigned to Trochonematidae by Erwin (1994); and to Archaeogastropoda by Sepkoski (2002).
Species lacking formal opinion data