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Bonapartenykus
| Bonapartenykus | |
|---|---|
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| Speculative life restoration | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Clade: | †Patagonykinae |
| Genus: | †Bonapartenykus Agnolin et al. 2012 |
| Species: | †B. ultimus
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| Binomial name | |
| †Bonapartenykus ultimus Agnolin et al. 2012
| |
Bonapartenykus (meaning "José F. Bonaparte's claw") is a monospecific genus of alvarezsauroid dinosaur from Argentina that lived during the Late Cretaceous (Campanian-Maastrichtian) in what is now the upper Allen Formation of the Río Negro Province. The type and only species, Bonapartenykus ultimus, is known from a nearly articulated but partial skeleton that was found in close association to two incomplete eggs and several clusters of eggshells belonging to the oogenus Arriagadoolithus. Bonapartenykus was named in 2012. It has an estimated length of 2.5–3.3 m (8.2–10.8 ft) and weight of 43–72 kg (95–159 lb), making it the largest member of the clade Alvarezsauroidea.
- ^ Fernández, Marta; Martin, James; Casadío, Silvio (2008-03-01). "Mosasaurs (Reptilia) from the late Maastrichtian (Late Cretaceous) of northern Patagonia (Río Negro, Argentina)". Journal of South American Earth Sciences. 25 (2): 176–186. doi:10.1016/j.jsames.2007.07.005. ISSN 0895-9811.
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