AlectrosaurusvsPachycephalo-saurus
Alectrosaurus has a higher Time Span (20 vs 3 Myr), while Alectrosaurus has a higher Length (5 vs 3 m), while Alectrosaurus has a higher Earliest Appearance (90 vs 69 Ma).
Physical Characteristics
5
Length
3
N/A
Weight
450
carnivorous
Diet
herbivorous
Classification
large theropod
Type
pachycephalosaur
Temporal Range
Late Cretaceous
Era
Late Cretaceous
90
Earliest Appearance
69
70
Latest Appearance
66
20
Time Span
3
80
Temporal Midpoint
68
Discovery
1,933
Year Discovered
1,943
China, Mongolia
Discovery Location
Canada, USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).