featurenames.txt

https://en.wikipedia.org/wiki/Planetary_geology#Features_and_terms

Catena          Chain of craters
Cavus           Hollows
Chaos           Broken terrain
Chasma          Canyon
Colles          Hills
Dorsum          Wrinkle ridge
Fossa           Narrow depression
Fluctus         Terrain covered by outflow of liquid
Labyrinthus     Valley complex
Mensa           Mesa
Mons            Mountain, volcano
Palus           Small plain
Patera          Shallow volcano
Planitia        Basin, low plain
Planum          high plain, plateau
Rupes           Scarp, cliff
Sulcus          Subparallel furrows and ridges
Scopulus        Irregular scarp
Terra           Land, region
Tholus          Domical volcano
Undae           Field of dunes
Vallis          Valley
Vastitas        Extensive plane

Catena
Cavus
Chaos
Chasma
Colles
Dorsum
Fossa
Fluctus
Labyrinthus
Mensa
Mons
Palus
Patera
Planitia
Planum
Rupes
Sulcus
Scopulus
Terra
Tholus
Undae
Vallis
Vastitas

Chain of craters
Hollows
Broken terrain
Canyon
Hills
Wrinkle ridge
Narrow depression
Outflow of liquid
Valley complex
Mesa
Mountain, volcano
Small plain
Shallow volcano
Basin, low plain
High plain, plateau
Scarp, cliff
Furrows and ridges
Irregular scarp
Land, region
Domical volcano
Field of dunes
Valley
Extensive plane