SinornithosaurusvsTroodon
Troodon has a higher Time Span (8 vs 2 Myr), while Sinornithosaurus has a higher Latest Appearance (120 vs 66 Ma), while Sinornithosaurus has a higher Temporal Midpoint (121 vs 70 Ma).
Physical Characteristics
2
Length
2
N/A
Weight
40
carnivorous
Diet
carnivorous
Classification
small theropod
Type
small theropod
Temporal Range
Early Cretaceous
Era
Late Cretaceous
122
Earliest Appearance
74
120
Latest Appearance
66
2
Time Span
8
121
Temporal Midpoint
70
Discovery
1,999
Year Discovered
1,856
China
Discovery Location
USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).