Table 1. Comparison of unit names between those used in this study and in previous mapping studies.

This study	Fassett and Head (2005)	Ehlmann et al. (2008)	Schon et al. (2012)	Tanaka et al. (2014)	Goudge et al. (2015)	Goudge et al. (2018)	Sun and Stack (2020)
Aeolian bedforms, large	–	–	–	Hesperian and Noachian transition unit	Surficial debris cover	–	Eolian bedform unit
Aeolian bedforms, small	–	–	–	Hesperian and Noachian transition unit	Surficial debris cover	–	Eolian bedform unit
Undifferentiated smooth	–	–	–	Hesperian and Noachian transition unit	–	–	Smooth unit, undivided
Talus	–	–	–	Hesperian and Noachian transition unit	Surficial debris cover	–	–
Crater floor fractured 1	–	–	–	Hesperian and Noachian transition unit	Light-toned floor unit	–	Lower etched unit
Crater floor fractured 2	–	–	–	Hesperian and Noachian transition unit	Light-toned floor unit	–	Lower etched unit
Crater floor fractured rough	–	–	–	Hesperian and Noachian transition unit	Volcanic floor unit	–	Jezero floor unit
Margin fractured	–	–	–	Hesperian and Noachian transition unit	Mottled terrain	–	Upper etched unit
Delta blocky	Western fan	Western delta	Channel sands	Hesperian and Noachian transition unit	Western fan deposit	Inverted Channel Bodies	Jezero fan 2 unit
Delta thinly layered	Western fan	Western delta	–	Hesperian and Noachian transition unit	Western fan deposit	–	Jezero fan 2 unit
Delta thickly layered	Western fan	Western delta	–	Hesperian and Noachian transition unit	Western fan deposit	–	Jezero fan 2 unit
Delta truncated curvilinear layered	Western fan	Western delta	Scroll bars	Hesperian and Noachian transition unit	Western fan deposit	Point Bar Strata	Jezero fan 2 unit
Delta layered rough	Northern fan	Northern delta	–	Hesperian and Noachian transition unit	Northern fan deposit	–	Jezero fan 1 unit
Crater rim blocky	–	–	–	Hesperian and Noachian transition unit; middle Noachian highland massif unit	Crater rim and wall material	–	Crater rim unit
Crater rim breccia	–	–	–	Hesperian and Noachian transition unit; middle Noachian highland massif unit	Crater rim and wall material	–	Crater rim unit
Crater rim layered	–	–	–	Hesperian and Noachian transition unit; middle Noachian highland massif unit	Crater rim and wall material	–	Nili Planum 1 unit
Crater rim rough	–	–	–	middle Noachian highland massif unit	Thin dark capping unit	–	Nili Planum 2 unit
Neretva Vallis layered	Western input valley	Channels	–	Hesperian and Noachian transition unit	Valley networks	–	Jezero fan 2 unit
Nili Planum fractured	–	–	–	Hesperian and Noachian transition unit; middle Noachian highland massif unit	Mottled terrain; Eroded mottled terrain	–	Upper etched unit