IrritatorvsStygimoloch
Irritator has a higher Time Span (13 vs 1 Myr), while Irritator has a higher Length (7 vs 3 m), while Irritator has a higher Earliest Appearance (112 vs 67 Ma).
Physical Characteristics
7
Length
3
N/A
Weight
N/A
carnivorous
Diet
herbivorous
Classification
large theropod
Type
pachycephalosaur
Temporal Range
Early Cretaceous
Era
Late Cretaceous
112
Earliest Appearance
67
99
Latest Appearance
66
13
Time Span
1
106
Temporal Midpoint
67
Discovery
1,996
Year Discovered
1,983
Brazil
Discovery Location
USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).