Category:Early Ordovician first appearances
From Infogalactic: the planetary knowledge core
- Biological taxa that first appeared during the Early Ordovician epoch' of geologic time — between 485.4 and 470 million years ago.
| Phanerozoic Eon | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Paleozoic Era | Mesozoic Era | Cenozoic Era | |||||||||
| Cambrian | Ordovician | Silurian | Devonian | Carboniferous | Permian | Triassic | Jurassic | Cretaceous | Paleogene | Neogene | 4ry |
Pages in category "Early Ordovician first appearances"
The following 24 pages are in this category, out of 24 total.
