Here is the full list of all 49 Dino Run DX achievements.
All Medium Speedruns
All Hard Speedruns
60 Second Doom Surf
30 Second Doom Surf
25 Dino Saved
500 Lizards Eaten
Complete Medium Planet D
2000 Eggs Saved
Beat Medium Halloween Hellrun
4X Dactyl Chain
3X Dactyl Chain
100 Fish Eaten
500 Runners Eaten
10 Second Boulder Ride
3 Second Boulder Ride
6 Second Boulder Ride
1000 Eggs Saved
Complete Hard Challenge
10 Dino Saved
250 Lizards Eaten
250 Runners Eaten
50 Worms Slurped
50 Birds Devoured
5 Dino Saved
50 Fish Eaten
100 Lizards Eaten
10 Second Doom Surf
25 Birds Devoured
25 Worms Slurped
250 Eggs Saved
100 Runners Eaten
25 Fish Eaten
2X Dactyl Chain
10 Worms Slurped
10 Birds Devoured
Complete Medium Challenge
1 Dino Saved
All Bronze Trophies
All Silver Trophies
All Gold Trophies
All Insane Speedruns
Complete Hard Planet D
Complete Insane Planet D
Complete Insane Challenge
All Super Eggs Saved
50 Dino Saved
Found The Little Green Dude
Beat Hard Halloween Hellrun
Beat Insane Halloween Hellrun