AlvarezsaurusvsDromaeosaurus
Alvarezsaurus has a higher Time Span (4 vs 2 Myr), while Alvarezsaurus has a higher Earliest Appearance (89 vs 76 Ma), while Alvarezsaurus has a higher Temporal Midpoint (87 vs 75 Ma).
Physical Characteristics
2
Length
2
N/A
Weight
15
carnivorous
Diet
carnivorous
Classification
small theropod
Type
small theropod
Temporal Range
Late Cretaceous
Era
Late Cretaceous
89
Earliest Appearance
76
85
Latest Appearance
74
4
Time Span
2
87
Temporal Midpoint
75
Discovery
1,991
Year Discovered
1,922
Argentina
Discovery Location
Canada, USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).