Primordial Caves Mobs

The Primordial Caves are Alex’s Caves’ prehistoric cave biome, full of dinosaurs. In Soulrend they are their own dimension, reached with a Dimensions of Alex’s Caves key in Act III's The Caverns chapter. Most of the dinosaurs only fight back, but Vallumraptors and Tremorsauruses attack players who come close. The Luxtructosaurus, a quest target, and the Tremorzilla have their own pages.

Spawning#

Mob Weight Attacks players
Grottoceratops 27 Only when attacked
Relicheirus 13 Only when attacked
Atlatitan 10 Only when attacked
Subterranodon 6 Only when attacked
Vallumraptor 6 Yes, players who come close; hunts in packs
Tremorsaurus 5 Yes, players who come close

Trilocaris and Frogs also spawn there. Several of these dinosaurs can be tamed.

Stats#

None of them has a level setting, so their level matches the Soulrend level of the nearest player (see Mob Levels). The table gives health / attack damage / armor.

Mob Base Act III (100) Act III-b (150)
Vallumraptor 28 HP / 3 / 0 859.6 HP / 32.7 / 0 1,279.6 HP / 47.7 / 0
Tremorsaurus 150 HP / 14 / 8 4,605 HP / 152.6 / 16.7 6,855 HP / 222.6 / 21.1
Relicheirus 120 HP / 12 / 0 3,684 HP / 130.8 / 0 5,484 HP / 190.8 / 0
Grottoceratops 50 HP / 10 / 8 1,535 HP / 109 / 16.7 2,285 HP / 159 / 21.1
Atlatitan 400 HP / 8 / 0 12,280 HP / 87.2 / 0 18,280 HP / 127.2 / 0

The Tremorsaurus and Grottoceratops have 90% knockback resistance and the Atlatitan 100%.

Drops#

Mob Drops
Vallumraptor, Subterranodon Nothing
Tremorsaurus 0–2 Dinosaur Chop; 2–3 Heavy Bone
Relicheirus 1–2 Dinosaur Chop; 1–3 Heavy Bone; 1–4 Feather
Grottoceratops 1–2 Dinosaur Chop; 0–2 Tough Hide
Atlatitan 7–9 Dinosaur Chop; 5–9 Heavy Bone