| Clue | Source | Date |
|---|---|---|
| An old bird's cheaper to X-ray surprisingly (13) | ||
| Genus of extinct primitive birds which occurred in Jurassic times (13) | ||
| Feature of foot, toe pear shaped, on more than one unknown fossil | The Times Cryptic | 12 Dec 2023 |
| Early fossil bird | The Times Concise | 26 Apr 2021 |