RiojasaurusvsStygimoloch
Riojasaurus has a higher Time Span (11 vs 1 Myr), while Riojasaurus has a higher Earliest Appearance (221 vs 67 Ma), while Riojasaurus has a higher Temporal Midpoint (216 vs 67 Ma).
Physical Characteristics
5
Length
3
N/A
Weight
N/A
herbivorous
Diet
herbivorous
Classification
prosauropod
Type
pachycephalosaur
Temporal Range
Late Triassic
Era
Late Cretaceous
221
Earliest Appearance
67
210
Latest Appearance
66
11
Time Span
1
216
Temporal Midpoint
67
Discovery
1,969
Year Discovered
1,983
Argentina
Discovery Location
USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).