AlamosaurusvsAlvarezsaurus
Alamosaurus has a higher Length (21 vs 2 m), while Alvarezsaurus has a higher Latest Appearance (85 vs 66 Ma), while Alvarezsaurus has a higher Temporal Midpoint (87 vs 68 Ma).
Physical Characteristics
21
Length
2
N/A
Weight
N/A
herbivorous
Diet
carnivorous
Classification
sauropod
Type
small theropod
Temporal Range
Late Cretaceous
Era
Late Cretaceous
70
Earliest Appearance
89
66
Latest Appearance
85
4
Time Span
4
68
Temporal Midpoint
87
Discovery
1,922
Year Discovered
1,991
USA
Discovery Location
Argentina
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).