AllosaurusvsProsaurolophus
Allosaurus has a higher Time Span (7 vs 2 Myr), while Allosaurus has a higher Earliest Appearance (152 vs 77 Ma), while Allosaurus has a higher Temporal Midpoint (149 vs 76 Ma).
Physical Characteristics
12
Length
8
2,000
Weight
N/A
carnivorous
Diet
herbivorous
Classification
large theropod
Type
large ornithopod
Temporal Range
Late Jurassic
Era
Late Cretaceous
152
Earliest Appearance
77
145
Latest Appearance
75
7
Time Span
2
149
Temporal Midpoint
76
Discovery
1,877
Year Discovered
1,916
Portugal, USA
Discovery Location
Canada, USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).