Some dinosaurs mistakenly assigned to Coeluridae in the past include Laevisuchus (a noasaurid) and Microvenator (a close relative of oviraptorids).
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Although they have been traditionally included in this family, there is no evidence that primitive coelurosaurs like Ornitholestes, Proceratosaurus and Scipionyx form a clade with Coelurus to the exclusion of other traditional coelurosaur families.
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In 2003, O.W.M. Rauhut, using a cladistic analysis, found Coeluridae to include Coelurus (Late Jurassic, North America), Compsognathus (Late Jurassic, Europe), Sinosauropteryx (Early Cretaceous, Asia) and an unnamed Compsognathus-like form (Early Cretaceous, South America; this dinosaur has since been placed in the new genus Mirischia).
In 2003, O.W.M. Rauhut redefined the family Coeluridae to include Coelurus (Late Jurassic, North America), Compsognathus (Late Jurassic, Europe), Sinosauropteryx (Early Cretaceous, Asia) and an unnamed Compsognathus-like form (Early Cretaceous, South America; this dinosaur has since been placed in the new genus Mirischia).