n15126000
| type | n |
| lex_filenum | 28 |
| def | from 63 million to 58 million years ago |
| def | appearance of birds and earliest mammals |
| Outgoing links | |
| Instance Hypernym | epoch |
| Part holonym | Tertiary, Tertiary period |
| Incoming links | |
| Part meronym | Tertiary, Tertiary period |
| Instance Hyponym | epoch |
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