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Dilophosaurus's two species, moreover, may be sexually dimorphic
representatives, crested females to attract males (in this case, males
>being the crestless forms known as Liliensternus) -- speculation, to >be
sure, but more viable than the heterosexist filters one encounter >(e.g.,
the gaudily frilled ceratopsians are often described as "male" >to entice
females; this is nonsense: ceratopsians were female->dominated).
Hmmm... I'm not so sure about this. Respected listmember Rob Gay has been
looking into sexual dimorphism as it pertains to _Dilophosaurus_ and hasn't
yet found any sign of this condition in this genus. In fact, he gave a
about it this past fall at SVP. The abstract can be found here:
Gay, Robert J. 2001. "Evidence for sexual dimorphism in the early Jurassic
theropod dinosaur Dilophosaurus and a comparison with other related forms."
Journal of Vertebrae Paleontology 21(3); 53A.
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