DryptosaurusvsPolacanthus
Polacanthus has a higher Latest Appearance (125 vs 66 Ma), while Polacanthus has a higher Temporal Midpoint (125 vs 75 Ma), while Polacanthus has a higher Earliest Appearance (125 vs 84 Ma).
Physical Characteristics
6
Length
5
N/A
Weight
N/A
carnivorous
Diet
herbivorous
Classification
large theropod
Type
armoured dinosaur
Temporal Range
Late Cretaceous
Era
Early Cretaceous
84
Earliest Appearance
125
66
Latest Appearance
125
18
Time Span
N/A
75
Temporal Midpoint
125
Discovery
1,866
Year Discovered
1,881
USA
Discovery Location
England, UnitedKingdom
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).