| ▲ | North America's Oldest Known Pterosaur(si.edu) | |
| 3 points by gmays 15 hours ago | 1 comments | ||
| ▲ | JoeAltmaier 14 hours ago | parent [-] | |
I've never known why Pangaea was stable for billions of years, then broke up in fire and death 200M years ago. Anybody have a reference? | ||