Which fossil is found on most of the continents in pangaea?

Pangaea was a supercontinent. All existing continents today were once joined together to form the Pangaea.

This was proven when identical plant and animal fossils were found in different continents around the world. These fossils were of the same age. These continents once formed the southern part of Pangea

Fossil:                                          Continent
Cynognathus  - Animal            South America, Africa
Glossopteris - Plant                  South America, Africa, Antarctica,                                                                     Australia, Asia (India)
Lystrosaurus - Animal              Africa, Antarctica, Asia (India)
 

2. x2 + 8x + 12 = 0 to prove: x = -6 or x = -2