Pachycephalosaurus
Pachycephalosaurus wyomingensis
ok. 4,5 mAdult individual · rekonstrukcja
Body length
Body length
wzdłuż osi ciała · od pyska do końca ogonaMeasurement: side
- Mass · szacunek
- No estimateSzacunki kopalne
Pachycephalosaurus — size comparison
Pachycephalosaurus lived in North America near the end of the Cretaceous. It had a strongly thickened, domed skull roof and bony knobs and spikes around the rea
Silhouette comparison
Length
wzdłuż osi ciała · od pyska do końca ogonaReconstructed measurements · fossil estimates
Body lengthScale in m
012345
approx. 4.5 m
The scale compares the named dimensions. View direction and measurement points are given for each animal.
Pachycephalosaurus — size comparison — facts and sources
Pachycephalosaurus lived in North America near the end of the Cretaceous. It had a strongly thickened, domed skull roof and bony knobs and spikes around the rear. Its diet is often described as chiefly plant-based, although other components have been considered.
Competition hypotheses include head impacts and display. Injury and mechanical studies help test them, but skull structures do not each establish a single function. Whether certain differently named, less-domed forms represent young Pachycephalosaurus also remains debated.