Hesperonychus (meaning "western claw") is a genus of small paravian theropod dinosaur. It may be a dromaeosaurid or an avialan. There is one described species, Hesperonychus elizabethae. The type species was named in honor of Dr. Elizabeth Nicholls of the Royal Tyrrell Museum of Palaeontology who collected it as a student in 1982.[1] It is known from fossils recovered from the Dinosaur Park Formation and possibly from the uppermost strata of the Oldman Formation of Alberta, dating to the Campanian stage of the Late Cretaceous around 75 million years ago.[2]
^Alberta researchers discover mini meat-eating dinosaur, a 16 March 2009 article from CBC News
^Cite error: The named reference longrich&currie2009 was invoked but never defined (see the help page).
tentatively referred to as cf. Hesperonychus. The gracile appearances of these potential toe bones make it unlikely that Hesperonychus belonged to the Eudromaeosauria...
of Liaoning County of China, and the putative Late Cretaceous member Hesperonychus from North America is subsequently classified as an eudromaeosaurian...
responded to these criticisms, noting that the related dromaeosaur Hesperonychus, which is known from complete hip bones preserved in three dimensions...
as well as the dromaeosaurids Dromaeosaurus, Saurornitholestes, and Hesperonychus, the tyrannosaurid Daspletosaurus, the orodromine thescelosaurid Albertadromeus...
Chirostenotes collinsi Paraves Dromaeosaurus albertensis Saurornitholestes Hesperonychus elizabethae ?new dromaeosaur species A ?new dromaeosaur species B Troodon...
keratin sheathes of the toe claws. In primitive dromaeosaurids like Hesperonychus, these grooves ran parallel to each other on either side of the claw...
Wyoming) One of the smallest sauropods of the Morrison Formation Hesperonychus 2009 Dinosaur Park Formation (Late Cretaceous, Campanian) Canada ( Alberta)...
Herbstosaurus – subsequently found to be a pterosaur Herrerasaurus Hesperonychus Hesperonyx Hesperornithoides Hesperosaurus Heterodontosaurus Heterosaurus...
slightly proximal to the pubic boot (this is seen also in dromaeosaurid Hesperonychus). Other traits argued to further distinguish Latenivenatrix from other...
tyrannosaurid Dromaeosaurus Indeterminate Teeth A dromaeosaurid cf. Hesperonychus Indeterminate Foot claw A dromaeosaurid or an avialan Paronychodon Indeterminate...
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