Pachycephalo-saurusvsProbactrosaurus
Probactrosaurus has a higher Time Span (22 vs 3 Myr), while Probactrosaurus has a higher Length (6 vs 3 m), while Probactrosaurus has a higher Earliest Appearance (121 vs 69 Ma).
Physical Characteristics
3
Length
6
450
Weight
N/A
herbivorous
Diet
herbivorous
Classification
pachycephalosaur
Type
large ornithopod
Temporal Range
Late Cretaceous
Era
Early Cretaceous
69
Earliest Appearance
121
66
Latest Appearance
99
3
Time Span
22
68
Temporal Midpoint
110
Discovery
1,943
Year Discovered
1,966
Canada, USA
Discovery Location
China
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).