Problems
Strategies
Values
Legacy Data
About
Contact
uia.org
The Encyclopedia
of World Problems
& Human Potential
Search Problems
You are here
Home
English
Extinct species of Tuarangiida
Broader
Extinct species
Threatened species of Pteriomorphia
Narrower
Extinct species of Tuarangiacea
Value(s)
Order
Disorder
Extinction
Type
(E) Emanations of other problems