AlamosaurusvsPsittacosaurus
Alamosaurus has a higher Length (21 vs 2 m), while Psittacosaurus has a higher Time Span (20 vs 4 Myr), while Psittacosaurus has a higher Earliest Appearance (120 vs 70 Ma).
Physical Characteristics
21
Length
2
N/A
Weight
50
herbivorous
Diet
herbivorous
Classification
sauropod
Type
ceratopsian
Temporal Range
Late Cretaceous
Era
Early Cretaceous
70
Earliest Appearance
120
66
Latest Appearance
100
4
Time Span
20
68
Temporal Midpoint
110
Discovery
1,922
Year Discovered
1,923
USA
Discovery Location
China, Mongolia, Russia
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).