AlvarezsaurusvsChirostenotes
Chirostenotes has a higher Time Span (12 vs 4 Myr), while Alvarezsaurus has a higher Latest Appearance (85 vs 67 Ma), while Alvarezsaurus has a higher Temporal Midpoint (87 vs 73 Ma).
Physical Characteristics
2
Length
2
N/A
Weight
N/A
carnivorous
Diet
omnivorous
Classification
small theropod
Type
small theropod
Temporal Range
Late Cretaceous
Era
Late Jurassic
89
Earliest Appearance
79
85
Latest Appearance
67
4
Time Span
12
87
Temporal Midpoint
73
Discovery
1,991
Year Discovered
1,924
Argentina
Discovery Location
Canada
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).