Petromyzoniformes vs Hyperoartia

Petromyzoniformes and Hyperoartia both are nouns.

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

As nouns, Petromyzoniformes and Hyperoartia are synonyms defined as:

Petromyzoniformes and Hyperoartia: lampreys as distinguished from hagfishes

Other synonyms of Petromyzoniformes include suborder Hyperoartia, suborder Petromyzoniformes.

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