Species
Valid Extinct

Bonapartenykus ultimus

Agnolin et al. 2012

No Wikipedia summary available.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
3
Group
Dinosaures
Carnivore Ground dwelling, solitary Terrestrial
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PBDB ↗
Classification
Dinosauria Unranked clade
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Theropoda Unranked clade
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Neotheropoda Unranked clade
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Averostra Unranked clade
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Tetanurae Unranked clade
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Coelurosauria Unranked clade
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Alvarezsauria Infraorder
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Alvarezsauroidea Unranked clade
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Bonapartenykus Genus
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Bonapartenykus ultimus Species
Fossil sites 3 geolocated sites
Distribution
Top countries
🇦🇷 Argentina
3
Geological formations
Allen
3
Temporal distribution
Maastrichtian (72.2–66 Ma)
3
Bibliography
Original description
F. L. Agnolin, J. E. Powell, and F. E. Novas, M. Kundrát. 2012. New alvarezsaurid (Dinosauria, Theropoda) from uppermost Cretaceous of north-western Patagonia with associated eggs. Cretaceous Research 35(1):33-56 DOI ↗
Bibliography (2)
J. G. Meso, J. N. Choiniere, and M. A. Baiano, S. L. Brusatte, J. I. Canale, L. Salgado, D. Pol, M. Pittman. 2025. New information on Bonapartenykus (Alvarezsauridae: Theropoda) from the Allen Formation (middle Campanian-lower Maastrichtian) of Río Negro Province, Patagonia, Argentina clarifies the Patagonykinae body plan. PLOS ONE 20(1):e0308366 DOI ↗
F. L. Agnolin, J. E. Powell, and F. E. Novas, M. Kundrát. 2012. New alvarezsaurid (Dinosauria, Theropoda) from uppermost Cretaceous of north-western Patagonia with associated eggs. Cretaceous Research 35(1):33-56 DOI ↗