Petromyzontidae
preferred label: مارماهیان @fa
type: Concept
broader: Petromyzontiformes

Cephalaspidomorphi
preferred label: سفالاس‌پیدومورفی @fa
type: Concept
narrower: Petromyzontiformes

Petromyzontiformes
narrower: Petromyzontidae
broader: Cephalaspidomorphi
preferred label: مارماهی‌سانان @fa
type: Concept