AlvarezsaurusvsMarshosaurus
Marshosaurus has a higher Length (6 vs 2 m), while Marshosaurus has a higher Time Span (12 vs 4 Myr), while Marshosaurus has a higher Earliest Appearance (154 vs 89 Ma).
Physical Characteristics
2
Length
6
N/A
Weight
N/A
carnivorous
Diet
carnivorous
Classification
small theropod
Type
large theropod
Temporal Range
Late Cretaceous
Era
Late Jurassic
89
Earliest Appearance
154
85
Latest Appearance
142
4
Time Span
12
87
Temporal Midpoint
148
Discovery
1,991
Year Discovered
1,976
Argentina
Discovery Location
USA
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Data sourced from World Dinosaur Dataset (Zenodo) (CC-BY 4.0).