Hall's phaeoceros
- kingdom: Plantae
- phylum: Anthocerotophyta
- class: Anthocerotopsida
- order: Notothyladales
- family: Notothyladaceae
- genus: Paraphymatoceros
- species: Paraphymatoceros hallii
Sacramento- Stanford
California- Boulevard Park
- Riverton
- Seattle
Washington
United States