AlvarezsaurusvsHerrerasaurus
Herrerasaurus has a higher Latest Appearance (228 vs 85 Ma), while Herrerasaurus has a higher Temporal Midpoint (228 vs 87 Ma), while Herrerasaurus has a higher Earliest Appearance (228 vs 89 Ma).
Physical Characteristics
2
Length
3
N/A
Weight
N/A
carnivorous
Diet
carnivorous
Classification
small theropod
Type
early dinosaur
Temporal Range
Late Cretaceous
Era
Late Triassic
89
Earliest Appearance
228
85
Latest Appearance
228
4
Time Span
N/A
87
Temporal Midpoint
228
Discovery
1,991
Year Discovered
1,963
Argentina
Discovery Location
Argentina
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).