AlvarezsaurusvsOuranosaurus
Ouranosaurus has a higher Time Span (15 vs 4 Myr), while Ouranosaurus has a higher Length (7 vs 2 m), while Ouranosaurus has a higher Earliest Appearance (115 vs 89 Ma).
Physical Characteristics
2
Length
7
N/A
Weight
N/A
carnivorous
Diet
herbivorous
Classification
small theropod
Type
large ornithopod
Temporal Range
Late Cretaceous
Era
Early Cretaceous
89
Earliest Appearance
115
85
Latest Appearance
100
4
Time Span
15
87
Temporal Midpoint
108
Discovery
1,991
Year Discovered
1,976
Argentina
Discovery Location
Niger
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).