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The heaviest Stegosaurians (Stegosauria) Top 10

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Weight, dimensions, size of Stegosaurians (Stegosauria)

One of the greatest features of the Stegosauria was the bone plates (osteoderms) arranged in a double row along the back and tail. These differ considerably in their form and serve as an important distinguishing feature of the individual genera. With some representatives (such as Stegosaurus and Lexovisaurus ) they were large, very thin and leaf-shaped; in others (like Tuojiangosaurus) more conical and sometimes (like Kentrosaurus) pointed and thorny. The bone plates were not directly connected to the skeleton, but stuck in the skin, so that their exact arrangement is unclear. Initially it was assumed that they lay flat on the back of the animals like a tank; however, recent finds suggest that they were erected. Whether they were arranged in parallel or mutually offset is just as controversial as their function.

The brain skull of the stegosaurs was small and, accordingly, these animals have a common reputation for having minimal mental faculties. In fact, the estimated brain mass was only 0.001% of body weight, but ankylosaurs and sauropods had relatively smaller brains than stegosaurs.

Today we present the world’s largest list of Stegosaurians (Stegosauria) ranked by weight. Soon we will present a list of the longest Stegosaurians (Stegosauria).

The heaviest Stegosaurians (Stegosauria) Top 10

No	Dinosaur	Weight [kg]	Weight [lb]
1	Stegosaurus ungulatus	6 000 kg	13 228 lb
2	Stegosaurus armatus	3 800 kg	8 378 lb
3	Stegosaurus stenops	3 800 kg	8 378 lb
4	Dacentrurus armatus	3 600 kg	7 937 lb
5	Diracodon laticeps	3 400 kg	7 496 lb
6	Miragaia longicollum	3 000 kg	6 614 lb
7	Paranthodon africanus	3 000 kg	6 614 lb
8	Hypsirophus discurus	2 800 kg	6 173 lb
9	Hesperosaurus mjosi	2 600 kg	5 732 lb
10	Stegosaurus sulcatus	2 600 kg	5 732 lb
11	Wuerhosaurus homheni	2 200 kg	4 850 lb
12	Tuojiangosaurus multispinus	2 100 kg	4 630 lb
13	“Ferganastegos callovicus”	2 100 kg	4 630 lb
14	Adratiklit boulahfa	1 900 kg	4 189 lb
15	Lexovisaurus durobrivensis	1 900 kg	4 189 lb
16	Alcovasaurus longispinus	1 500 kg	3 307 lb
17	Loricatosaurus priscus	1 400 kg	3 086 lb
18	Monkonosaurus lawulacus	1 400 kg	3 086 lb
19	“Chungkingosaurus giganticus”	1 300 kg	2 866 lb
20	Chialingosaurus kuani	1 200 kg	2 646 lb
21	Kentrosaurus aethiopicus	1 200 kg	2 646 lb
22	Jiangjunosaurus junggarensis	1 000 kg	2 205 lb
23	Isaberrysaura mollensis	1 000 kg	2 205 lb
24	Huayangosaurus taibaii	1 000 kg	2 205 lb
25	Wuerhosaurus ordosensis	1 000 kg	2 205 lb
26	Dacentrurus lennieri	950 kg	2 094 lb
27	“Chungkingosaurus magnus”	900 kg	1 984 lb
28	“Saldamosaurus tuvensis”	800 kg	1 764 lb
29	Gigantspinosaurus sichuanensis	700 kg	1 543 lb
30	Yingshanosaurus jichuanensis	700 kg	1 543 lb
31	“Eoplophysis vetustus”	650 kg	1 433 lb
32	Mongolostegus exspectabilis	650 kg	1 433 lb
33	Dacentrurus phillipsii	500 kg	1 102 lb
34	Regnosaurus northamptoni	400 kg	882 lb
35	Chungkingosaurus jiangbeiensis	400 kg	882 lb
36	“Astrodon” pusillus	350 kg	772 lb
37	“Changtusaurus laminaplacodus”	350 kg	772 lb
38	“Amargastegos brevicollus”	230 kg	507 lb
39	Dravidosaurus blanfordi	200 kg	441 lb
40	“Siamodracon altispinus”	75 kg	165 lb