The Eratosthenian period in the lunar geologic timescale runs from 3,200 million years ago to 1,100 million years ago. It is named after the crater Eratosthenes...

Earth's Moon into five generally recognized periods: the Copernican, Eratosthenian, Imbrian (Late and Early epochs), Nectarian, and Pre-Nectarian. The...

near the exterior of the southwest wall. Diophantus is a crater of Eratosthenian age. This cleft follows a generally east–west path across the Mare Imbrium...

– −1500 — – −1000 — – −500 — – 0 — Pre-Nectarian Nectarian Imbrian Eratosthenian Copernican Late Early       Periods on the Lunar Geologic Timescale...

is from the Lower Imbrian epoch, and the mare material is from the Eratosthenian epoch.[citation needed] "Mare Vaporum". Gazetteer of Planetary Nomenclature...

– −1500 — – −1000 — – −500 — – 0 — Pre-Nectarian Nectarian Imbrian Eratosthenian Copernican Late Early       Periods on the Lunar Geologic Timescale...

The crater Theophilus on the northeastern side of the mare is of the Eratosthenian period. Thus, the crater is younger than the mare to its southeast....

Five geologic systems/periods (Pre-Nectarian, Nectarian, Imbrian, Eratosthenian, Copernican), with the Imbrian divided into two series/epochs (Early...

is of the Imbrian and Eratosthenian age. Bullialdus crater, a prominent feature on the west side of the mare, is of Eratosthenian age. Other features within...

distance from the Earth to the Sun. Eratosthenes (crater) on the Moon. Eratosthenian period in the lunar geologic timescale. Eratosthenes Seamount in the...