Dilophosaurus (7 m, ~400 kg) was much larger than Coelophysis (3 m, ~20 kg).
Dilophosaurus had two distinctive parallel bony crests on its skull; Coelophysis had a plain, slender skull.
Both lived in the Early JurassicโLate Triassic of North America and were among the earliest large theropods.
Dilophosaurus had a notch in its upper jaw (kinked jaw) of uncertain function; Coelophysis had a uniform, unkinked jaw.
Jurassic Park depicted Dilophosaurus as spitting venom โ there is no fossil evidence for this ability.
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Did You Know? fun facts
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Did You Know?
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Dilophosaurus was about 2.3x longer than Coelophysis.
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Dilophosaurus weighed roughly 20x more than Coelophysis.
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Both Coelophysis and Dilophosaurus were carnivores.
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Coelophysis lived during the Triassic Late while Dilophosaurus lived during the Jurassic Early, separated by roughly 0 million years.
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Coelophysis was discovered 65 years earlier, in 1889.
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Both belong to the Theropoda clade, making them relatively close relatives.
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Related comparisons
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