Editing Pre-Nectarian (section)

{{short description|Geologic period, 4533 to 3920 million years ago}}{{Infobox geologic timespan
| name                         = Pre-Nectarian
| manual_color                 = rgb(209.0, 77.0, 96.0)
| top_bar                      = Lunar
| time_start                   = 4533
| time_end                     = 3920
| image_map                    =
| caption_map                  =
| image_outcrop                =
| caption_outcrop              =
| image_art                    =
| caption_art                  =
<!--Chronology-->
| timeline                     = Lunar periods
| subdivisions                 =
| proposed_subdivision1        =
| proposed_subdivision1_coined =
| proposed_subdivision2        =
| proposed_subdivision2_coined =
| proposed_subdivision3        =
| proposed_subdivision3_coined =
| former_subdivisions          =
| formerly_part_of             =
| partially_contained_in       =
| partially_contains           =
<!--Etymology-->
| chrono_name                  =
| strat_name                   =
| formality                    =
| alternate_spellings          =
| synonym1                     =
| synonym1_coined              =
| synonym2                     =
| synonym2_coined              =
| synonym3                     =
| synonym3_coined              =
| former_names                 =
| proposed_names               =
<!--Usage Information-->
| celestial_body               = moon
| usage                        =
| timescales_used              = Lunar Geologic Timescale
| used_by                      =
| formerly_used_by             =
| not_used_by                  =
<!--Definition-->
| chrono_unit                  = Period
| strat_unit                   =
| proposed_by                  =
| lower_boundary_def           =
| lower_stratotype_location    =
| upper_boundary_def           =
| upper_stratotype_location    =
<!--Atmospheric and Climatic Data-->
| o2                           =
| co2                          =
| temp                         =
| sea_level                    =
}}
The '''pre-Nectarian period''' of the [[lunar geologic timescale]] runs from 4.533 billion years ago (the time of the initial formation of the [[Moon]]) to 3.920 billion years ago, when the [[Nectaris Basin]] was formed by a large impact. It is followed by the [[Nectarian]] period.