AllosaurusvsNigersaurus
Nigersaurus has a higher Time Span (22 vs 7 Myr), while Allosaurus has a higher Latest Appearance (145 vs 99 Ma), while Allosaurus has a higher Temporal Midpoint (149 vs 110 Ma).
Physical Characteristics
12
Length
15
2,000
Weight
N/A
carnivorous
Diet
herbivorous
Classification
large theropod
Type
sauropod
Temporal Range
Late Jurassic
Era
Early Cretaceous
152
Earliest Appearance
121
145
Latest Appearance
99
7
Time Span
22
149
Temporal Midpoint
110
Discovery
1,877
Year Discovered
1,999
Portugal, USA
Discovery Location
Algeria, Niger, Tunisia
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).