Tyrannosaurus Arm
This trophy proves your worth as a hunter.
Details
- Category
- Resource
- Games
- ASE + ASA
- Expansion
- Base
- Loot crates
- 4 crates
- Item ID
- 157
Engram
How you unlock it
- Required level
- None
- Engram points
- 0
- How to unlock
- Resource (Not an Engram)
Maps
Found on 8 maps
Video guides: search YouTube for Tyrannosaurus Arm guides
How to get Tyrannosaurus Arm
Tyrannosaurus Arm is found in 4 loot crates.
Loot crates
4 crates
- Corrupted RexThe Island, Scorched Earth, Aberration, Extinction, Genesis Part 1, Genesis Part 2, The Center, Ragnarok, Valguero, Crystal Isles, Lost Island, and Fjordur · ASE
- RexThe Island, Scorched Earth, Aberration, Extinction, Genesis Part 1, Genesis Part 2, The Center, Ragnarok, Valguero, Crystal Isles, Lost Island, and Fjordur · ASE
- Rex GhostThe Island, Scorched Earth, Aberration, Extinction, Genesis Part 1, Genesis Part 2, The Center, Ragnarok, Valguero, Crystal Isles, Lost Island, and Fjordur · ASE
- Skeletal Alpha RexThe Island, Scorched Earth, Aberration, Extinction, Genesis Part 1, Genesis Part 2, The Center, Ragnarok, Valguero, Crystal Isles, Lost Island, and Fjordur · ASE
Tyrannosaurus Arm — Detailed Guide
A hunter's trophy used in tributes
Every Tyrannosaurus carries two of these arms in ARK: Survival Evolved and ARK: Survival Ascended. The in-game text frames the item as a trophy: "This trophy proves your worth as a hunter." The ARK Wiki describes it as a requirement for access to the Boss Arenas, and our records list it in a series of tribute recipes.
Taking the arms
Look in the inventory of a dead Tyrannosaurus or 
Tek Rex before harvesting the body. If the corpse was harvested first, the arms are left in a bag on the ground, and they also show up when other predators eat it. Our records list 4 loot entries that can contain an arm, named 
Rex, 
Corrupted Rex, 
Rex Ghost and Skeletal Alpha Rex.
Tributes that use it
Our records count 12 recipes in ASA and 9 in ASE. Both games use 4 arms each for the 
Generate Broodmother Portal, 
Generate Dragon Portal and 
Generate Megapithecus Portal, 5 for the 
Generate Dragon (Beta) Portal, 15 for the 
Generate Dragon (Alpha) Portal and 10 for 
Summon Forest Titan. Beyond these:
- ASA:
Generate Grendel (Alpha) Portal (15) and 
Generate Grendel (Beta) Portal (10), 
Generate Hydraskos the Unbroken (Alpha) Portal (15) and its Beta version (5), plus the 
Abyssalus Hard Tribute (15) and 
Abyssalus Medium Tribute (5). - ASE: Portal to the Guardian's Sanctuary (Alpha) (15) and (Beta) (10), plus
Generate Dinopithecus King (Alpha) Portal (5).
Weight and storage
An arm weighs 2 and arms stack to 100, so a full stack weighs 200. The wiki gives a decomposition time of 120 seconds, and our records list the item on 8 maps.