AchelousaurusvsProtohadros
Achelousaurus has a higher Time Span (13 vs 5 Myr), while Protohadros has a higher Latest Appearance (94 vs 70 Ma), while Protohadros has a higher Temporal Midpoint (97 vs 77 Ma).
Physical Characteristics
6
Length
6
N/A
Weight
N/A
herbivorous
Diet
herbivorous
Classification
ceratopsian
Type
large ornithopod
Temporal Range
Late Cretaceous
Era
Late Cretaceous
83
Earliest Appearance
99
70
Latest Appearance
94
13
Time Span
5
77
Temporal Midpoint
97
Discovery
1,995
Year Discovered
1,998
USA
Discovery Location
USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).