CoelurusvsStygimoloch
Coelurus has a higher Time Span (10 vs 1 Myr), while Coelurus has a higher Earliest Appearance (155 vs 67 Ma), while Coelurus has a higher Temporal Midpoint (150 vs 67 Ma).
Physical Characteristics
2
Length
3
N/A
Weight
N/A
carnivorous
Diet
herbivorous
Classification
small theropod
Type
pachycephalosaur
Temporal Range
Late Jurassic
Era
Late Cretaceous
155
Earliest Appearance
67
145
Latest Appearance
66
10
Time Span
1
150
Temporal Midpoint
67
Discovery
1,879
Year Discovered
1,983
USA
Discovery Location
USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).