Petromyzoniformes vs suborder Hyperoartia

Petromyzoniformes and suborder Hyperoartia both are nouns.

Word	Noun	Adjective	Verb	Adverb
Petromyzoniformes	Yes	No	No	No
suborder Hyperoartia	Yes	No	No	No

As nouns, Petromyzoniformes and suborder Hyperoartia are synonyms defined as:

Petromyzoniformes and suborder Hyperoartia: lampreys as distinguished from hagfishes

Other synonyms of Petromyzoniformes include Hyperoartia, suborder Petromyzoniformes.

Petromyzoniformes (noun)	suborder Hyperoartia (noun)
lampreys as distinguished from hagfishes	lampreys as distinguished from hagfishes