AlvarezsaurusvsProsaurolophus
Prosaurolophus has a higher Length (8 vs 2 m), while Alvarezsaurus has a higher Time Span (4 vs 2 Myr), while Alvarezsaurus has a higher Earliest Appearance (89 vs 77 Ma).
Physical Characteristics
2
Length
8
N/A
Weight
N/A
carnivorous
Diet
herbivorous
Classification
small theropod
Type
large ornithopod
Temporal Range
Late Cretaceous
Era
Late Cretaceous
89
Earliest Appearance
77
85
Latest Appearance
75
4
Time Span
2
87
Temporal Midpoint
76
Discovery
1,991
Year Discovered
1,916
Argentina
Discovery Location
Canada, USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).