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JAKAPIL

a thyreophoran genasaurian dinosaur from the Late Cretaceous of Argentina.
Pronunciation: ja-ka-pill
Meaning: Shield-bearer
Author/s: Riguetti et al. (2022)
Synonyms: None known
First Discovery: Río Negro, Argentina
Discovery Chart Position: #1074

Jakapil kaniukura

In the 'gananah iahish', Puelchean or northern Tehuelchean language, Jakapil (Ja-Kapïl) means "shield bearer", in reference to the armour knobs that fortified its skin in life. The species epithet, kaniukura, is derived from "kaniu" (crest) and "kura" (stone) in the Mapudungun language, in reference to the unusual bony crest on its lower jaw. These languages, currently spoken by more than 200,000 people, have been combined as a tribute to both of the coexisting native populations of North Patagonia, South America.
Zoobank registry: urn:lsid:zoobank.org:act:B1D89736-E707-4E08-A70A-6632C09F9A5F.
Discovery
The first remains of Jakapil were discovered in the Candeleros Formation (Neuquén Group) on land owned by the Mariluan family near Cerro Policía, within the "La Buitrera Paleontological Area" (LBPA), close to the E. Ramos Mexía Dam, Río Negro Province, North Patagonia, Argentina, in 2012.
The holotype (MPCA-PV-630), found at the "Rinconada de la Piedra Blanca" site, is the partial skeleton of a subadult individual, including skull fragments, 15 partial teeth, a nearly complete left lower jaw, 12 partial vertebrae, a complete back rib plus fifteen rib fragments, both partial shoulder blades, two partial upper arm bones, a partial right forearm bone (ulna), 2 hand bones, hip fragments, thighbone fragments, the end of a right shin and calf, three toe bones, and more than forty osteoderms (armour knobs embeded in the skin). Referred material (MPCA-PV-371), found at the "Jofra" site, includes two conical osteoderms.
Preparators
L. Pazo and J. Kaluza.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Cenomanian
Age range: 97-94 mya
Stats:
Est. max. length: 1.8 meters
Est. max. hip height: ?
Est. max. weight: 12 Kg
Diet: Herbivore
References
• Riguetti FJ, Apesteguía S and Pereda-Suberbiola X (2022) "A new Cretaceous thyreophoran from Patagonia supports a South American lineage of armoured dinosaurs". Scientific Reports, 12: 11621. DOI: 10.1038/s41598-022-15535-6. [*Image credit*]
• Raven TJ, Barrett PM, Joyce CB and Maidment SCR (2023) "The phylogenetic relationships and evolutionary history of the armoured dinosaurs (Ornithischia: Thyreophora)". Journal of Systematic Palaeontology, 21(1): 2205433. DOI: 10.1080/14772019.2023.2205433.
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To cite this page:
Atkinson, L. "JAKAPIL :: from DinoChecker's dinosaur archive".
›. Web access: 06th Mar 2026.
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