AlvarezsaurusvsSpinosaurus
Spinosaurus has a higher Length (14 vs 2 m), while Spinosaurus has a higher Time Span (5 vs 4 Myr), while Spinosaurus has a higher Earliest Appearance (99 vs 89 Ma).
Physical Characteristics
2
Length
14
N/A
Weight
7,400
carnivorous
Diet
carnivorous
Classification
small theropod
Type
large theropod
Temporal Range
Late Cretaceous
Era
Late Cretaceous
89
Earliest Appearance
99
85
Latest Appearance
94
4
Time Span
5
87
Temporal Midpoint
97
Discovery
1,991
Year Discovered
1,915
Argentina
Discovery Location
Egypt, Morocco
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).