Genus
Valid Extinct

Albertonykus

Longrich and Currie 2009

Albertonykus is an extinct genus of alvarezsaurid dinosaur from the Maastrichtian-age rocks of the Horseshoe Canyon Formation of Alberta, Canada. It is known from forelimb and hindlimb remains from multiple individuals. All but two of the specimens come from a bonebed dominated by Albertosaurus, located at the top of Unit 4 of the Horseshoe Canyon Formation, dating to ~68.5 million years ago.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
2
Group
Dinosaures
Carnivore Ground dwelling, solitary Terrestrial
Albertonykus
click to enlarge
アルバートニクス  © Karkemish · CC BY 3.0 · Wikimedia
Albertonykus
Albertonykus
PBDB ↗ Wikipedia ↗
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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Alvarezsauridae Family
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Albertonykus Genus
Measurements
Length
1,2 m ⓘ
Albertonykus borealis
Mass
3 kg ⓘ
Albertonykus borealis
Fossil sites 2 geolocated sites
Distribution
Top countries
🇺🇸 United States
1
🇨🇦 Canada
1
Geological formations
Hell Creek
1
Horseshoe Canyon
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
2
Species (1)
Albertonykus borealis 72 Ma
Images 2
Bibliography
Original description
N. R. Longrich and P. J. Currie. 2009. Albertonykus borealis, a new alvarezsaur (Dinosauria: Theropoda) from the Early Maastrichtian of Alberta, Canada: implications for the systematics and ecology of the Alvarezsauridae. Cretaceous Research 30(1):239-252 DOI ↗
Bibliography (2)
W. W. Stein. 2021. The paleontology, geology and taphonomy of the Tooth Draw Deposit; Hell Creek Formation (Maastrictian), Butte County, South Dakota. The Journal of Paleontological Sciences JPS.C.21:0001:1-108
N. R. Longrich and P. J. Currie. 2009. Albertonykus borealis, a new alvarezsaur (Dinosauria: Theropoda) from the Early Maastrichtian of Alberta, Canada: implications for the systematics and ecology of the Alvarezsauridae. Cretaceous Research 30(1):239-252 DOI ↗