AlvarezsaurusvsDryptosaurus
Dryptosaurus has a higher Time Span (18 vs 4 Myr), while Dryptosaurus has a higher Length (6 vs 2 m), while Alvarezsaurus has a higher Latest Appearance (85 vs 66 Ma).
Physical Characteristics
2
Length
6
N/A
Weight
N/A
carnivorous
Diet
carnivorous
Classification
small theropod
Type
large theropod
Temporal Range
Late Cretaceous
Era
Late Cretaceous
89
Earliest Appearance
84
85
Latest Appearance
66
4
Time Span
18
87
Temporal Midpoint
75
Discovery
1,991
Year Discovered
1,866
Argentina
Discovery Location
USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).