It's Always in the Last Place You Look

Recover Archaeology artifacts from each of the following races:
 * requiring Archaeology skill 1+
 * Dwarf
 * Troll
 * Fossil
 * Night elf


 * requiring Archaeology skill 300+
 * Orc
 * Draenei


 * requiring Archaeology skill 375+
 * Nerubian
 * Vrykul


 * requiring Archaeology skill 450+
 * Tol'vir