ash hollow Formation
type: Concept
preferred label: سازند گودال خاکستر @fa
related: Ogallala Formation

Valentine Formation
type: Concept
preferred label: سازند والنسین @fa
related: Ogallala Formation

Pliocene
type: Concept
preferred label: پلیوسن @fa
related: Ogallala Formation

Ogallala Formation
type: Concept
broader: Neogene
preferred label: سازند اوگالالا @fa
related: Valentine Formation
related: Kansas
related: Nebraska
related: ash hollow Formation
related: Pliocene
related: Miocene
related: Wyoming
related: Texas
related: Colorado
related: New Mexico
related: Oklahoma

Miocene
type: Concept
preferred label: میوسن @fa
related: Ogallala Formation

Neogene
type: Concept
narrower: Ogallala Formation
preferred label: نئوژن @fa

Oklahoma
type: Concept
preferred label: اوکلاهما @fa
related: Ogallala Formation

Texas
type: Concept
preferred label: تگزاس @fa
related: Ogallala Formation

Kansas
type: Concept
preferred label: کانزاس @fa
related: Ogallala Formation

Colorado
type: Concept
preferred label: کلرادو @fa
related: Ogallala Formation

Nebraska
type: Concept
preferred label: نبراسکا @fa
related: Ogallala Formation

New Mexico
type: Concept
preferred label: نیومکزیکو @fa
related: Ogallala Formation

Wyoming
type: Concept
preferred label: ویومینگ @fa
related: Ogallala Formation