Below are the confirmed (PTR) items being added to Archaeology in Patch 4.1

Artifact	Project	Type	Branch	Fragments
Extinct Turtle Shell	Extinct Turtle Shell	Shield	Fossil	150
Pterrordax Hatchling	Pterrordax Hatchling	Companion Pet	Fossil	120
Voodoo Figurine	Voodoo Figurine	Companion Pet	Troll	100
Vrykul Drinking Horn	Vrykyl Drinking Horn	Vanity	Vrykul	100
Ancient Amber	Ancient Amber	Vanity	Fossil	100
Haunted War Drum	Haunted War Drum	Vanity	Troll	100

Voodoo Figurine

Pterrordax Hatchling

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Zul’Gurub: Edge of Madness

Along with some new projects to research, Archaeologists will also be able to unlock one of four additional bosses (chosen randomly) for their group in Zul’Gurub. This is from the Edge of Madness event in the upcoming patch with Zul’Gurub reintroduced.