Random triples
| Subject | Object |
|---|---|
| gptkb:Osagean | approximately 347 million years ago |
| gptkb:Bartonian | 41.2 million years ago |
| gptkb:Bathonian_stage | 168.2 million years ago |
| gptkb:Series_2_(Cambrian) | 521 million years ago |
| gptkb:Stage_4_(Cambrian) | 514 million years ago |