46 ft. - 14 m. (Large)
Krona's great Attack isn't hampered from the SZ. Powerful enough to be considered be the T-Rex of the seas.
A large Water-type Vivosaur that's effective when attacking from long range. It's a rival to the Fire-type T-Rex.
The largest sea carnivore was crocodile-like in looks and diet.
Its biting power was stronger than even the tyrannosaurus.
|Fossil Fighters||Bottomsup Bay|
|Fossil Fighters: Champions||Icegrip Plateau|
Stats and Skills (Max Rank)
|Law of the Jungle||---||200||Recover using ally LP|
Success rate: 100%
|Waterspout||173||380||Team Skill: Attack both AZ and SZ|
Super Revival forms
|Silver Head Fossil||Silver Body Fossil||Silver Arm Fossil||Silver Leg Fossil||Gold Fossil|
|640 20||640 20||640 20||640 20||720 100|
|90 5||85||95 10||85||90 5|
|25||35 10||25||30 5||30 5|
- Krona was designed with Roman numerals covering its body because of its species name, Kronosaurus, meaning "time lizard." 
- Krona's Silver Fossil integrations change its colors in a same or very similar manner as T-Rex's - likely being a homage to it being the "T-Rex of the seas".
- Krona and Mapo can both be considered T-Rex's Water-type equivalents. Krona is called the "T-Rex of the Sea", while Mapo has similar stats, and Super Evolves into a similar Super Evolver.
- Krona is the only pliosaur (short-necked plesiosaur) vivosaur.
- Krona shares similar moves and the same victory cry with Shoni despite them being unrelated.
- ↑ Nintendo (2009). The Making of Fossil Fighters - Developer Interviews. Nintendo's official Fossil Fighters site. Retrieved 11 April 2014.
|Fossil Fighters: Champions|
|Fossil Fighters: Frontier|