HadrosaurusvsPolacanthus
Hadrosaurus has a higher Length (9 vs 5 m), while Polacanthus has a higher Latest Appearance (125 vs 74 Ma), while Polacanthus has a higher Temporal Midpoint (125 vs 76 Ma).
Physical Characteristics
9
Length
5
N/A
Weight
N/A
herbivorous
Diet
herbivorous
Classification
large ornithopod
Type
armoured dinosaur
Temporal Range
Late Cretaceous
Era
Early Cretaceous
78
Earliest Appearance
125
74
Latest Appearance
125
4
Time Span
N/A
76
Temporal Midpoint
125
Discovery
1,858
Year Discovered
1,881
USA
Discovery Location
England, UnitedKingdom
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).