Prontosaur the Punctual Dofus: Jeez Crater, loot and spells

Where to find Prontosaur the Punctual

Rank	Level	HP	AP	MP	XP
1	20	260	9	4	14 560
2	25	370	9	4	19 500
3	30	500	9	4	24 960
4	35	650	9	4	30 940
5	40	800	9	4	37 440

Rank	Neutral	Earth	Fire	Water	Air
1	10 %	10 %	80 %	-5 %	10 %
2	10 %	10 %	85 %	-4 %	10 %
3	10 %	10 %	90 %	-3 %	10 %
4	10 %	10 %	95 %	-2 %	10 %
5	10 %	10 %	100 %	-1 %	10 %

XP: base experience of a single monster, before Wisdom, group, and challenge bonuses.

Hit it first with Water (-5 to -1%). Avoid Fire (80 to 100%).

Its attacks mostly deal Fire damage: Fire resistance reduces it. Its attacks reach up to 4 cells.

Watch out for:

Base rate, increased by Prospecting.

Only during a quest

Only during an event or with a specific item

The recipes that use each item it drops, from the game files.

Juvenile Ashes (100%): 5 recipes, including Perfect Little Vulkanian Backpack (Tailor, lvl. 50), Vulkanian Ring (Jeweller, lvl. 54) and Vulkanian Boots (Shoemaker, lvl. 56).
Sauroshell Egg Yolk (8.4%): 5 recipes, including Perfect Little Vulkanian Backpack (Tailor, lvl. 50), Vulkanian Ring (Jeweller, lvl. 54) and Vulkanian Boots (Shoemaker, lvl. 56).
Ruby Stone (1.01%): 3 recipes, Nightmare Catcher (Carver, lvl. 10), Ruby (Miner, lvl. 50) and Bards' Hall (Smith, lvl. 99).
Contaminated Meat (100%): 2 recipes, including Meat Roulade (Hunter, lvl. 30). It is used to craft the Key to the Royal Gobball's Court, which opens the dungeon.

“If you were hoping to see a Sauroshell be reborn from these ashes, you're going to be waiting a long time.” Juvenile Ashes, in-game description