Size comparison scale

[dinosauria101]

Neotype of Carcharodontosaurus (SGM DIN-1, 13.23 meters axial length, ~9 tonnes) vs Titanoboa (14.6 meters TL, 2 tonnes). Scalebar is 1 meter, skeletals by SpinoInWonderland and Blaze.

[Infinity Blade]

Purussaurus skull next to black caiman skull.


Purussaurus upper jaw fragment next to black caiman skull.

[dinosauria101]

Sue the Tyrannosaurus rex (FMNH PR 2081, 12.3 meters TL, ~8 tonnes) vs Dreadnoughtus holotype (MPM-PV 1156, 26 meters TL, 46 tonnes, still a juvenile). Scalebar is 1 meter, skeletals by Hartman and the Dreadnoughtus discovery paper.

[dinosauria101]

American mastodon vs Barosaurus, max vs max (595BS71 vs BYU 9024)
American mastodon is scaled to 325 cm SH and is 11 tonnes, while Barosaurus is scaled to 50 meters TL and is 100 plus tonnes. Skeletals by Larramendi and Hartman.

[dinosauria101]

Here are 4 of North America's giants.
Sauroposeidon holotype (OMNH 53062, 32 meters TL, 60+ tonnes), max Triceratops (UCMP 128561, 9 meters TL, 13.2+ tonnes using this skeletal), max American mastodon (595BS71, 325 cm shoulder height, 11 tonnes), and OMNH 1670 Apatosaurus (29.8 meters TL, 52+ tonnes, less than half grown). Sauroposeidon scalebar is 1 meter, skeletals by Paleo King, GetAwayTrike, Larramendi, and Hartman respectively.

[Infinity Blade]

Found this from Mauricio Anton's Twitter (link).

The caption read: "The Miocene carnivores from Cerro Batallones, Madrid. From left to right: Simocyon (foreground); Magericyon (middle ground); Indarctos (background); Protictitherium (foreground); Eomellivora (middle ground); Leptofelis (foreground); Machairodus (background); and Promegantereon".

[dinosauria101]

Eotriceratops vs Futalognkosaurus, holotypes of both (RTMP 2002.57.5 vs MUCPv-323).
Eotriceratops is ~9 meters TL and 11-13.2 tonnes based on Triceratops, while Futalognkosaurus is 27.3 meters TL and 60 tonnes based on this skeletal. Futalognkosaurus scalebars are 1 meter, credit to GetAwayTrike and Paleo King for the skeletals.

[dinosauria101]

Some of the younger T rex and Apatosaurus
LACM 23845 (8.21 meters TL, 2 tonnes) vs NSMT-PV 20375 (16.87 meters TL, 9.7 tonnes). Scalebar is 1 meter, skeletals by Franoys and Hartman.

[dinosauria101]

Holotype of Tyrannosaurus rex (CM 9380, 11.9 meters TL, 7.5 tonnes) vs Dreadnoughtus holotype (MPM-PV 1156, 26 meters TL, 46 tonnes, still growing). Scalebar is 1 meter, skeletals by Hartman and the Dreadnoughtus discoverers.

[dinosauria101]

Gorgosaurus pack of 3 (holotype, 9.3 meters TL, 3 tonnes), vs Scotty the Tyrannosaurus rex (12.1 meters TL, ~8 tonnes (or 8.6 if you prefer). Scalebars are 1 meter, skeletals by Randomdinos.

[jdangerousdinosaur]

Spinosaurus 15m 6.9 tonnes with Giganotosaurus 12.2m 6.8 tonnes diagrams by Franoys

[dinosauria101]

Here are 6 of Asia's big bois from prehistory.
From left to right: Ruyangosaurus (31 meters TL, 60 tonnes), Huanghetitan (30 meters TL, 73 tonnes), Mamenchisaurus sinocanadorum (35 meters TL, 75 tonnes), Palaeoloxodon namadicus (500 cm SH, 22 tonnes), Paraceratherium (480 cm SH, 17 tonnes), and steppe mammoth (389 cm SH, 10.4 tonnes). Scalebars are 1 meter, skeletals are by Paleo King, Paleo King, Greg Paul, and Larramendi respectively.

[dinosauria101]

Here's the Argentinosaurus holotype (Paleo King), average Bengal tiger (GuateGojira) and Sue the Tyrannosaurus rex (Franoys).
These dumb, dimwitted overgrown lizards stand no chance against the overlord of the universe, the allmighty Tiger! I do feel sorry for them!

[dinosauria101]

Palaeoloxodon namadicus (lost femur fragment, 500 cm SH, 22 tonnes) vs Sauroposeidon holotype (OMNH 53062, 32 meters TL, 60+ tonnes). Scalebar square is 1 meter, skeletals by Larramendi and Paleo King.

[dinosauria101]

Here's the version of T rex vs Giganotosaurus you often do not see!
Bucky the Tyrannosaurus rex (10.5 meters TL, 4 tonnes) vs MUCPv-Ch1 (12.4 meters TL, 7 tonnes) and MUCPv-95 (13.2 meters TL, 8.2 tonnes). Skeletals by Franoys and Hartman respectively.