OthnieliavsSecernosaurus
Othnielia has a higher Time Span (12 vs 5 Myr), while Othnielia has a higher Earliest Appearance (154 vs 71 Ma), while Othnielia has a higher Temporal Midpoint (148 vs 69 Ma).
Physical Characteristics
1
Length
3
N/A
Weight
N/A
herbivorous
Diet
herbivorous
Classification
small ornithischian
Type
large ornithopod
Temporal Range
Late Jurassic
Era
Late Cretaceous
154
Earliest Appearance
71
142
Latest Appearance
66
12
Time Span
5
148
Temporal Midpoint
69
Discovery
1,877
Year Discovered
1,979
USA
Discovery Location
Argentina
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).