AlvarezsaurusvsAntarctosaurus
Antarctosaurus has a higher Length (18 vs 2 m), while Alvarezsaurus has a higher Earliest Appearance (89 vs 84 Ma), while Alvarezsaurus has a higher Temporal Midpoint (87 vs 84 Ma).
Physical Characteristics
2
Length
18
N/A
Weight
N/A
carnivorous
Diet
herbivorous
Classification
small theropod
Type
sauropod
Temporal Range
Late Cretaceous
Era
Late Cretaceous
89
Earliest Appearance
84
85
Latest Appearance
84
4
Time Span
N/A
87
Temporal Midpoint
84
Discovery
1,991
Year Discovered
1,929
Argentina
Discovery Location
Argentina, Chile, Uruguay
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).