AlvarezsaurusvsPrenocephale
Prenocephale has a higher Time Span (14 vs 4 Myr), while Alvarezsaurus has a higher Latest Appearance (85 vs 66 Ma), while Prenocephale has a higher Length (2 vs 2 m).
Physical Characteristics
2
Length
2
N/A
Weight
N/A
carnivorous
Diet
herbivorous
Classification
small theropod
Type
pachycephalosaur
Temporal Range
Late Cretaceous
Era
Late Cretaceous
89
Earliest Appearance
80
85
Latest Appearance
66
4
Time Span
14
87
Temporal Midpoint
73
Discovery
1,991
Year Discovered
1,974
Argentina
Discovery Location
Mongolia
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).