AlvarezsaurusvsProtohadros
Protohadros has a higher Length (6 vs 2 m), while Protohadros has a higher Time Span (5 vs 4 Myr), while Protohadros has a higher Earliest Appearance (99 vs 89 Ma).
Physical Characteristics
2
Length
6
N/A
Weight
N/A
carnivorous
Diet
herbivorous
Classification
small theropod
Type
large ornithopod
Temporal Range
Late Cretaceous
Era
Late Cretaceous
89
Earliest Appearance
99
85
Latest Appearance
94
4
Time Span
5
87
Temporal Midpoint
97
Discovery
1,991
Year Discovered
1,998
Argentina
Discovery Location
USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).