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sharp-clawed runner
Jaculinykus
Say it like this: “jak-yoo-lin-eye-kus”
Jaculinykus yaruui
Jaculinykus ate meat and walked on two legs. It lived in the Late Cretaceous. Bones have been found in Mongolia.
- When
- Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
- Named in
- 2023 · Kubo, K.; Kobayashi, Y.; Chinzorig, T.; Tsogtbaatar, K.
- Hip height
- Not established
- Length
- Not established
- Weight
- Not established
- Found in
- Mongolia · Baruungoyot
- Food and walking
- Carnivore · Two legs
- Kind
- sharp-clawed runner · Theropod
- Family branch
- Parvicursorinae
The story in short
Jaculinykus was formally named in 2023 by K. Kubo and colleagues. The name means “jaculus claw.”
Fossils referred to Jaculinykus date to the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from Mongolia, including the Baruungoyot Formation. It was a carnivore and walked on two legs.
The fossils of Jaculinykus are too incomplete for a responsible length, hip height, or weight, so those fields are left blank on purpose.
On the family tree it sits in Parvicursorinae, among the theropod dinosaurs.