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bn:00059450n
Noun Named Entity
SYL
No term available
EN
From 500 million to 425 million years ago; conodonts and ostracods and algae and seaweeds WordNet 3.0
Relations
Sources
IS A
EN
period
EN
system
HAS PART
EN
Early Ordovician
EN
Middle Ordovician
EN
Late Ordovician
PART OF
EN
Paleozoic
EN
Cambro-Silurian
DESCRIBED BY SOURCE
EN
Armenian Soviet Encyclopedia
FOLLOWED BY
EN
Silurian
FOLLOWS
EN
Cambrian
NAMED AFTER
EN
Ordovices
NAMED BY
Charles Lapworth

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