Carta da dino nr. 0948 da 2 027

Kawanectes

Il num vul dir: “Kawas swimmer”1

Mangiava: CharnPlesiosaursCretacic tardivTecnicamain betg in dinosaur

Kawanectes was a small marine reptile with a long neck that lived in the seas of Patagonia near the end of the Age of Dinosaurs. It was an elasmosaurid plesiosaur, but much smaller than its giant relatives, only about as long as a small car.1

Fatg divertent: quest reptil da mar nudava, entant ch'ils dinosaurs chaminavan sin terra. Tuts als numnan dinos, ma els eran in'autra rama dals reptils.

Viveva

avant 72 fin 66 milliuns onns3

Cretacic tardiv

Fossils chattads en

Argentina, in the Allen Formation and La Colonia Formation of Patagonia1 2

Lunghezza

3,8 fin 4,2 m (12 fin 14 ft)1

Spertadad maximala

var 29 km/h (18 mph)

Nudar, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

uschè lung sco 4 chauns dal nas a la cuauschè lung sco 23 bananas ina suenter l'autrapudess nudar la lunghezza d'ina gronda piscina (50 m) en 6,2 secundas

Quant grond era Kawanectes cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Kawanectes var 29 km/h (18 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

Kawanectes is one of the smallest elasmosaurids ever found, with an adult body length of only 3.8 to 4.2 metres (12 to 14 feet).1

Its name comes from the Kawas Sea, an ancient ocean that covered Patagonia during the Late Cretaceous.1

One specimen of Kawanectes was found with 389 gastroliths, or stomach stones, which may have helped it digest food or control buoyancy.1

Kawanectes had a high humerus-to-femur length ratio of about 1.2, meaning its upper arm bone was longer than its thigh bone, which is unusual among elasmosaurids.1

Scientists think Kawanectes may have been sexually dimorphic, with females possibly larger than males.1

Kawanectes lived in a marginal marine environment, probably an estuary, not the open ocean, and it was smaller than open-ocean plesiosaurs.1

Maletg da Kawanectes fatg cun IA — In maletg fatg cun IA che mussa co Kawanectes pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

tias dumondas

Las dumondas las pli frequentas davart Kawanectes

?How big was Kawanectes?

Kawanectes was about 3.8 to 4.2 metres (12 to 14 feet) long as an adult, which is small for an elasmosaurid.1 2

?What did Kawanectes eat?

Kawanectes likely ate small marine animals, and its jaw shape suggests it could snap its jaws shut quickly for fast bites, but not with a strong bite force.2

?Where did Kawanectes live?

Kawanectes lived in the seas of Patagonia, in what is now Argentina, during the Late Cretaceous, in a coastal or estuarine environment.1 2

?Was Kawanectes a dinosaur?

No, Kawanectes was a plesiosaur, a marine reptile, not a dinosaur.1

Per experts da dinos

Num scientific: Kawanectes
Numnà da: O'Gorman 20163
Gruppa: Plesiosaurs
Famiglia / clada: Elasmosauridae3
Classificaziun: Plesiosauria > Elasmosauridae > Sauropterygia3
Vegliadetgna da la crappa: 72 fin 66 milliuns onns (Maastrichtian)3
Formaziuns da crap: La Colonia, Allen3
Pajais: Argentinia3
Chats da fossils: 8 en The Paleobiology Database3
Scuverta: Kawanectes was first named as a species of Trinacromerum in 1985 by Gasparini and Goñi, but in 2016 José P. O'Gorman gave it its own genus, Kawanectes, based on new fossils.1
Anc discutà: Scientists are not sure exactly how many neck and tail vertebrae Kawanectes had, because the known fossils are incomplete.1

Danunder che vegnan ils fatgs

Kawanectes (en.wikipedia.org)
First record of Kawanectes lafquenianum (Plesiosauria, Elasmosauridae) from the La Colonia Formation of Argentina, with comments on the mandibular morphology of elasmosaurids: Alcheringa: An Australasian Journal of Palaeontology: Vol 44 , No 1 - Get Access (tandfonline.com)
Kawanectes in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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