101Leafy researched the games.
Fatalis

A legendary black dragon said to have prowled these lands from the days of old. Many skilled hunters have sought to challenge it, but none ever return. A monster shrouded in mystery...
Monster List No. 30
Carving
Number of carvings: ??? (BradyGames, Monster Hunter Official Strategy Guide, 2004, p. 89). The guide (p. 78) splits the carves by Quest Level: early quests are levels 1 to 3, latter quests 4 to 6.
Early quests
| Item | Chance |
|---|---|
| Fatalis' Scale | 45% |
| Fatalis' Shell | 45% |
| Fatalis' Horn | 10% |
Latter quests
| Item | Chance |
|---|---|
| Fatalis' Scale | 45% |
| Fatalis' Shell | 45% |
| Fatalis' Horn | 10% |