AmmosaurusvsRiojasaurus
Ammosaurus has a higher Time Span (15 vs 11 Myr), while Riojasaurus has a higher Latest Appearance (210 vs 180 Ma), while Riojasaurus has a higher Temporal Midpoint (216 vs 188 Ma).
Physical Characteristics
5
Length
5
N/A
Weight
N/A
herbivorous
Diet
herbivorous
Classification
prosauropod
Type
prosauropod
Temporal Range
Early Jurassic
Era
Late Triassic
195
Earliest Appearance
221
180
Latest Appearance
210
15
Time Span
11
188
Temporal Midpoint
216
Discovery
1,891
Year Discovered
1,969
USA
Discovery Location
Argentina
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).