Mosasaurus

Where to catch Mosasaurus

Bites in lava.

From fishing logs players upload. Share is of catches with a known location.

Best bait for Mosasaurus

No source names a best bait for Mosasaurus yet, so we don’t guess. These baits start a cast in lava:

• Gemmed Lure
• Heavy Gemmed Lure

Since the October 2026 overhaul, bait decides which fish can come up, not how often they bite (Catnip fishing deep dive, section 13).

Sizes

The SotA wiki lists Mosasaurus as a trophy fish.

When Mosasaurus bites

No source gives Mosasaurus a time-of-day or moon rule.

How rare is Mosasaurus?

Rare. Evidence: Sized trophy kind on the wiki (Young, Small, Large); only 1 community catch(es), all Young or Large tiers.

What to do with your catch

Each size is its own item in the game. Loot pages list where it drops and what it is used for; market pages show what players paid.

• Young Mosasaurus (Lava Fish)Loot pageMarket prices