ChasmosaurusvsProtohadros
Protohadros has a higher Time Span (5 vs 2 Myr), while Protohadros has a higher Earliest Appearance (99 vs 76 Ma), while Protohadros has a higher Temporal Midpoint (97 vs 75 Ma).
Physical Characteristics
5
Length
6
2,500
Weight
N/A
herbivorous
Diet
herbivorous
Classification
ceratopsian
Type
large ornithopod
Temporal Range
Late Cretaceous
Era
Late Cretaceous
76
Earliest Appearance
99
74
Latest Appearance
94
2
Time Span
5
75
Temporal Midpoint
97
Discovery
N/A
Year Discovered
1,998
Canada
Discovery Location
USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).