AlvarezsaurusvsOpisthocoeli-caudia
Opisthocoeli-caudia has a higher Length (12 vs 2 m), while Alvarezsaurus has a higher Latest Appearance (85 vs 68 Ma), while Alvarezsaurus has a higher Temporal Midpoint (87 vs 70 Ma).
Physical Characteristics
2
Length
12
N/A
Weight
N/A
carnivorous
Diet
herbivorous
Classification
small theropod
Type
sauropod
Temporal Range
Late Cretaceous
Era
Late Cretaceous
89
Earliest Appearance
72
85
Latest Appearance
68
4
Time Span
4
87
Temporal Midpoint
70
Discovery
1,991
Year Discovered
1,977
Argentina
Discovery Location
Mongolia
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).