MamenchisaurusvsRiojasaurus
Mamenchisaurus has a higher Length (22 vs 5 m), while Riojasaurus has a higher Latest Appearance (210 vs 145 Ma), while Riojasaurus has a higher Temporal Midpoint (216 vs 150 Ma).
Physical Characteristics
22
Length
5
N/A
Weight
N/A
herbivorous
Diet
herbivorous
Classification
sauropod
Type
prosauropod
Temporal Range
Late Jurassic
Era
Late Triassic
155
Earliest Appearance
221
145
Latest Appearance
210
10
Time Span
11
150
Temporal Midpoint
216
Discovery
1,954
Year Discovered
1,969
China
Discovery Location
Argentina
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).