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. Actinopterygii (subclass)
11. Esociformes (order)
12. Esocidae (family)

Anotations

Scope note:

Genus of freshwater fish; the only living genus in the family Esocidae, which were endemic to North America, Europe, and Eurasia during the Paleogene through present. They are distinguished by an elongate body, small scales, long head, shovellike snout, and large mouth armed with strong teeth. The dorsal and anal fins are far back on the tail.