MamenchisaurusvsPachycephalo-saurus
Mamenchisaurus has a higher Length (22 vs 3 m), while Mamenchisaurus has a higher Time Span (10 vs 3 Myr), while Mamenchisaurus has a higher Earliest Appearance (155 vs 69 Ma).
Physical Characteristics
22
Length
3
N/A
Weight
450
herbivorous
Diet
herbivorous
Classification
sauropod
Type
pachycephalosaur
Temporal Range
Late Jurassic
Era
Late Cretaceous
155
Earliest Appearance
69
145
Latest Appearance
66
10
Time Span
3
150
Temporal Midpoint
68
Discovery
1,954
Year Discovered
1,943
China
Discovery Location
Canada, USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).