Pachycephalo-saurusvsRiojasaurus
Riojasaurus has a higher Time Span (11 vs 3 Myr), while Riojasaurus has a higher Earliest Appearance (221 vs 69 Ma), while Riojasaurus has a higher Temporal Midpoint (216 vs 68 Ma).
Physical Characteristics
3
Length
5
450
Weight
N/A
herbivorous
Diet
herbivorous
Classification
pachycephalosaur
Type
prosauropod
Temporal Range
Late Cretaceous
Era
Late Triassic
69
Earliest Appearance
221
66
Latest Appearance
210
3
Time Span
11
68
Temporal Midpoint
216
Discovery
1,943
Year Discovered
1,969
Canada, USA
Discovery Location
Argentina
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).