Substantiv
Översättningar
The Aalenian ( /ɑːˈliːniən/) is a subdivision of the Middle Jurassic epoch/series of the geologic timescale that extends from about 174.1 Ma to about 170.3 Ma (million years ago). It was preceded by the Toarcian and succeeded by the Bajocian
https://en.wikipedia.org/wiki/Aalenian