AlvarezsaurusvsSonidosaurus
Sonidosaurus has a higher Time Span (23 vs 4 Myr), while Sonidosaurus has a higher Length (9 vs 2 m), while Alvarezsaurus has a higher Latest Appearance (85 vs 66 Ma).
Physical Characteristics
2
Length
9
N/A
Weight
N/A
carnivorous
Diet
herbivorous
Classification
small theropod
Type
sauropod
Temporal Range
Late Cretaceous
Era
Late Cretaceous
89
Earliest Appearance
89
85
Latest Appearance
66
4
Time Span
23
87
Temporal Midpoint
78
Discovery
1,991
Year Discovered
2,006
Argentina
Discovery Location
China
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).