Introduction
⬥ The Rex Matriarchs are four dinosaur bosses found on Anachronia
⬥ Each Matriarch has its own attack style, weakness and mechanics
⬥ While the Matriarchs share a boss instance, only 3/4 share an arena
• Osseous' arena is accessed via teleportation device near the entrance, only after completion of the Osseous Rex quest
The 4 Matriarchs
Orikalka
⬥ Primarily attacks with ![]()
⬥ Vulnerable to
(+27% hit chance with fire spells)
Rathis
⬥ Primarily attacks with
and ![]()
⬥ Vulnerable to
(+27% hit chance with stab)
Pthentraken
⬥ Primarily attacks with ![]()
⬥ Vulnerable to
(+27% hit chance with arrows)
Osseous
⬥ Primarily attacks with ![]()
⬥ Vulnerable to ![]()
Guide Links
⬥ Basic Guides & Mechanics
• Referenced guide unavailable in this snapshot
• Referenced guide unavailable in this snapshot
• Referenced guide unavailable in this snapshot
• Osseous Basic
⬥ Rotations
• Referenced guide unavailable in this snapshot
⬥ AFK & Low-effort
• AFK Orikalka
• AFK Rathis
• AFK Osseous
• Referenced guide unavailable in this snapshot
• Low Effort Pthentraken
Source & licence
By PvME contributors under CC BY-NC-SA 4.0. Navigation and typography adapted. Unavailable source links and contributor names are labelled. Embedded media has separate rights.
Copied on 10 Nov 2026. Not rechecked against the current game.
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