The story
From Greek sideros.
Etymology from Wiktionary, CC BY-SA 4.0.
Siderian
Si·der·i·anToday it means: Of a geologic period within the Paleoproterozoic era from about 2500 to 2300 million years ago. Full definition →
Today it means: Of a geologic period within the Paleoproterozoic era from about 2500 to 2300 million years ago. Full definition →
From Greek sideros.
Etymology from Wiktionary, CC BY-SA 4.0.