u/RedDiamond1024

I know Whales, Sauropods, Ichthyosaurs, and Sharks have multiple species that have surpassed 20 tonnes. There's also the pachycormiformes with Leedsichthys. I also know multiple other lineages had members at that 20 ton mark, namely Proboscideans, Rhinocerotoids, Hadrosaurs, and maybe Pliosaurs, but we don't have any from those lineages that reliably surpassed 20 tonnes(afaik).

Did any other lineages surpass 20 tonnes as far as we know or is it only those 5?

1. Toribot
2. Arale
3. Whis
4. Beerus
5. Golden Freiza
6. SSJB Goku/Vegeta
7. Super Vegito>~Super Gogeta
8. Bio Broly
9. Kid Buu
10. Super Janemba

1-4 are all kinda self explanatory. Toribot is the author, Arale is a busted gag character, Whis is above Beerus who’s above Golden Freiza.

Golden Freiza was stronger then the SSJBs

SSJB Goku and Vegeta are leagues above Vegito.

Vegito is called the Ultimate Super Warrior(1) and even the strongest in history(2), twice.     

Gogeta has similar statements to Vegito, though Vegito has slightly more statements saying he’s the strongest in guides that have both of them from what I’ve seen, but it’s close enough that I put them in the same spot.

Bio-Broly is here mostly off of Koyama statements.

Kid Buu is stated to be the Strongest Buu multiple times in the anime alone.

You can argue Buuhan made Super Vegito put more effort in than Janemba made Super Gogeta put into his fight. So Buuhan>Janemba and Kid Buu>Buuhan 

1. "Vegetto"

"The ultimate super warrior born from the fusion of Vegeta and Goku using the Elder Supreme Kai's Potara earrings. With the fusion extending to the physical body, clothing, and personality, his combat power dramatically increases, acquiring numerous techniques and tactics."
"He is characterized by a challenging expression, fused attire, and Potara earrings on both ears."
"The birth of the ultimate fused warrior!"
"While possessing an aggressive yet composed personality, he transforms into Super Vegito, overwhelming Majin Buu with his power!"

1. 並ぶ者のない史上最強の translates to “the strongest in history

Funny Notes

High end EoZ Goku and Bio Broly would be the 1 and 2 slots instead of Tori-Bot and Arale

If you really don’t want to use anime/guidebooks the order becomes Tori-Bot, Arale, Gogeta, Bio Broly, Super Janemba, FR Goku, FR Vegeta, Whis, Beerus, Golden Freiza.