ProbactrosaurusvsStygimoloch
Probactrosaurus has a higher Time Span (22 vs 1 Myr), while Probactrosaurus has a higher Length (6 vs 3 m), while Probactrosaurus has a higher Earliest Appearance (121 vs 67 Ma).
Physical Characteristics
6
Length
3
N/A
Weight
N/A
herbivorous
Diet
herbivorous
Classification
large ornithopod
Type
pachycephalosaur
Temporal Range
Early Cretaceous
Era
Late Cretaceous
121
Earliest Appearance
67
99
Latest Appearance
66
22
Time Span
1
110
Temporal Midpoint
67
Discovery
1,966
Year Discovered
1,983
China
Discovery Location
USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).