Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. Living Organisms (hierarchy name)
4. living organisms (entities)
5. Eukaryota (domain)
6. Animalia (kingdom)
7. Chordata (phylum)
8. Vertebrata (subphylum)
9. Osteichthyes (class)
10. Sarcopterygii (subclass)

Anotations

Scope note:

Members of an order containing six living species of fish having lungs as well as gills, retaining primitive characteristics such as the ability to breathe air, the presence of lobed fins, and a well-developed internal skeleton. Designated as a subclass rather than an order in some classifications.