| Animal (Category on Jellycat Site | Dragons & Dinosaurs |
| Soft Toy (Category on Jellycat Site) | N/A |
| Amuseables (Category on Jellycat Site) | N/A |
| Bags & Bag Charms (Category on Jellycat Site) | N/A |
| Style No. | Small / Mini – FOS6TREX Medium – FOS2TREX |
| Color | Green |
| Release Date | Small / Mini – 2021 Main Addition / Midyear Medium – 2021 Main |
| Retire Date | Small / Mini – 2024 UK / 9/24/24 US Medium – 2024 UK / 8/19/24 US |
| Creature Type | Dinosaur |
| Style | Fossilly |
| Collection/Range | Fossilly |
| Sizes | Small / Mini Medium |
Description: “Fossilly T-Rex loves rambling about, making big prints with those chunky feet! With soft green fur instead of scales, a squishable snoot and a long, squidgy tail, this smiley dino has teeny arms but gives Cretaceous cuddles!”
Notes: When they first came out in 2020, they were called ‘Fossily’, until 2022, when it switched to ‘Fossilly’.