The heaviest Pachycephalosaurs (Pachycephalosauria) Top 10

The heaviest Pachycephalosaurs Top 10

Weight, dimensions, size of Pachycephalosaurs (Pachycephalosauria)

The most striking feature in the construction of the skull was the thickened skull. The characteristic skull of pachycephalosaurs is a result of the fusion and thickening of the frontals and parietals, accompanied by the closing of the supratemporal fenestra. There were two basic patterns: In the flat-headed representatives, these bones were separated by sutures (skull sutures) and the top of the skull was thickened but not bulged. In the other pachycephalosaurs, these two bones had grown together and were domed.

So far there are only a few genera finds of the trunk skeleton or limbs, many areas in the physique of the pachycephalosauria – such as the number and the construction of the cervical vertebrae are not known.

Finds that can be clearly assigned to the Pachycephalosaurs are only from East Asia and North America , doubtful finds also from Europe , so that, according to current knowledge, these dinosaurs were limited to the continents of the northern hemisphere.

Many species are only known from skull fragments, and a complete pachycephalosaur skeleton is yet to be found.

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

The heaviest Pachycephalosaurs (Pachycephalosauria) Top 10

No	Dinosaur	Weight [kg]	Weight [lb]
1	Pachycephalosaurus wyomingensis	500 kg	1 102 lb
2	Stygimoloch spinifer	330 kg	728 lb
3	Dracorex hogwartsia	165 kg	364 lb
4	Gravitholus albertae	65 kg	143 lb
5	Acrotholus audeti	60 kg	132 lb
6	Hanssuesia sternbergi	50 kg	110 lb
7	Prenocephale prenes	50 kg	110 lb
8	Homalocephale calathocercos	48 kg	106 lb
9	Stegoceras validum	47 kg	104 lb
10	Texacephale langstoni	40 kg	88 lb
11	Prenocephale goodwini	37 kg	82 lb
12	Colepiocephale lambei	32 kg	71 lb
13	Goyocephale lattimorei	28 kg	62 lb
14	Alaskacephale gangloffi	25 kg	55 lb
15	Sphaerotholus buchholtzae	25 kg	55 lb
16	Prenocephale edmontonensis	25 kg	55 lb
17	Tylocephale gilmorei	20 kg	44 lb
18	Foraminacephale brevis	16 kg	35 lb
19	Stegoceras novomexicanum	10 kg	22 lb
20	Amtocephale gobiensis	1.50 kg	3.31 lb