Aftonian
Adjective
Meaning
Aftonian (not comparable)
(obsolete, geology) During the first interglacial period in North America, between the Kansan and Nebraskan glacial periods.
Adjective
Aftonian (not comparable)
(obsolete, geology) During the first interglacial period in North America, between the Kansan and Nebraskan glacial periods.