MarshosaurusvsPachycephalo-saurus
Marshosaurus has a higher Time Span (12 vs 3 Myr), while Marshosaurus has a higher Earliest Appearance (154 vs 69 Ma), while Marshosaurus has a higher Temporal Midpoint (148 vs 68 Ma).
Physical Characteristics
6
Length
3
N/A
Weight
450
carnivorous
Diet
herbivorous
Classification
large theropod
Type
pachycephalosaur
Temporal Range
Late Jurassic
Era
Late Cretaceous
154
Earliest Appearance
69
142
Latest Appearance
66
12
Time Span
3
148
Temporal Midpoint
68
Discovery
1,976
Year Discovered
1,943
USA
Discovery Location
Canada, USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).