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Khathunu ya Aristonectes
Karata ya dino No. 0168 mo go 2 027

Aristonectes

Leina le raya: “best swimmer”1
E jele: NamaDipleisiosoroBofelo jwa CretaceousKa saense, ga se dinosoro

Aristonectes was a huge marine reptile that swam in the seas near Antarctica and South America at the end of the Age of Dinosaurs. It had a big head, a short neck, and a body shaped a bit like a whale. It used its wide mouth to suck up food from the seafloor, just like a gray whale does today.1

Ntlha e e monate: segagabi seno sa lewatle se ne se thuma fa dinosoro di ne di tsamaya mo lefatsheng. Mongwe le mongwe o di bitsa didino, mme e ne e le lekala le lengwe la digagabi.
E tshetse
dimilione tsa dingwaga di le 84 go ya go 66 tse di fetileng4
Bofelo jwa Cretaceous
Difosili di fitlhetswe kwa
Argentina, Chile, and Antarctica41
Boleele
10 go ya go 11.9 m (33 go ya go 39 ft)1
Bokete
ditone di le 4.2 go ya go ditone di le 13.5 (9,300 go ya go 29,800 lb)1
Bonako jo bogolo
e ka nna 21 km/h (13 mph)
Go thuma, kakanyo

E tshetse leng?

Triassic
Jurassic
Cretaceous
dimilione tsa dingwaga di le 252 tse di fetileng20114566, asteroiti

E ne e le kgolo go le kae?

E ne e le telele go le kae?

Aristonectes e ka nna 11.9 m boleele (39 ft)Baesekele ya motho yo mogolo e ka nna 1.8 m (5.9 ft)Koloi e ka nna 4.5 m (15 ft)Tlou, phologolo e kgolo go gaisa tsotlhe mo lefatsheng gompieno e ka nna 6.5 m (21 ft)

E ne e le bokete go le kae?

bokete jaaka ditlou di le 2
telele jaaka dikoloi di le 2.5 di emisitswe mo molengtelele jaaka dibanana di le 66 di latelanabokete jaaka dikoloi di le 9bokete jaaka magapu a le 2700bokete jaaka diphaposiborutelo tse di tletseng bana di le 17bokete jaaka dibere tse ditshweu di le 30e ne e ka thuma boleele jwa letamo le legolo la go thuma (50 m) mo metsotswaneng e le 8.6

Aristonectes e ne e le kgolo go le kae fa e bapisiwa le WENA?

Ke dipalo fela mo sebatling sa gago. Ga go sepe se se bolokwang kgotsa se se romelwang gope.

E ne e le bonako go le kae?

dilo tse di monate

Dintlha tse di monate

1

Aristonectes is one of the biggest and heaviest plesiosaurs ever found. One Antarctic specimen may have weighed as much as 13.5 metric tons (about 15 tons), as heavy as a large school bus.1

2

Unlike most plesiosaurs, which had very long necks, Aristonectes had a short neck and a big, bulky skull. Scientists put it in a special group called Aristonectinae because of this.1

3

Aristonectes probably migrated between Patagonia and Antarctica, just like many whales do today. Its fossils are found in both places.1

4

The first fossils of Aristonectes were discovered in Argentina in 1941, but scientists had a hard time studying them because the bones were not well prepared. It took decades to figure out what kind of plesiosaur it was.1

5

Aristonectes had a mouth that could open very wide, letting it gulp a huge amount of water and food at once. It fed by mixing prey with sediment from the seafloor, a method called benthic suction feeding.1

6

Like other plesiosaurs, Aristonectes probably swallowed stones called gastroliths. These may have helped grind up food in its stomach or helped control its buoyancy in the water.1

E dirilwe ke AISetshwantsho sa Aristonectes se se dirilweng ke AI
Setshwantsho se se dirilweng ke AI sa kafa Aristonectes e ka tswang e ne e lebega ka gone, se dirilwe ke khomputara go ya ka se borasaense ba se itseng. Ke kakanyo fela: phologolo ya nnete e ka tswa e ne e lebega ka tsela e sele, mme ga go ope yo o itseng mebala ya yona ya nnete.
o botsitse

Dipotso tse di botswang thata ka ga Aristonectes

?How big was Aristonectes?

Aristonectes was huge, measuring more than 10 metres (33 feet) long. One Antarctic specimen may have reached 11 to 11.9 metres (36 to 39 feet) and weighed 10.7 to 13.5 metric tons (11.8 to 14.9 short tons).12

?What did Aristonectes eat?

Aristonectes likely ate crustaceans and small fish, based on its small teeth. It fed by sucking up prey and sediment from the seafloor, like a gray whale.13

?Was Aristonectes a dinosaur?

No, Aristonectes was a plesiosaur, a marine reptile that lived alongside the dinosaurs. It was not a dinosaur.1

?Where did Aristonectes live?

Aristonectes lived in the seas near Patagonia and Antarctica during the Late Cretaceous. Its fossils have been found in Chile, Argentina, and Antarctica.1

?Could Aristonectes swim?

Yes, Aristonectes was a strong swimmer, using its large paddle-like limbs to move through the water. Its name means 'best swimmer'.1

Ya baitseanape ba didino

Leina la saense
Aristonectes
Leina le neilwe ke
Cabrera 19414
Setlhopha
Dipleisiosoro
Lelapa / clade
Elasmosauridae4
Thulaganyo
Plesiosauria > Elasmosauridae > Sauropterygia4
Bogolo jwa matlapa
84 go ya go 66 dimilione tsa dingwaga (Campanian / Maastrichtian)4
Dibopego tsa matlapa
Quiriquina, López de Bertodano, Lopez de Bertodano4
Dinaga
Tšhile, Antaretika, Arejentina4
Direkoto tsa difosili
12 mo The Paleobiology Database4
E itsiwe gape e le
Turneria (maina a bogologolo jaanong a balwa jaaka phologolo e le nngwe)4
Go fitlhelwa
Aristonectes was named by Argentine paleontologist Ángel Cabrera in 1941, based on fossils found in Chubut, Argentina. The first species named was Aristonectes parvidens.14
Go sa ntse go ganetsanwa
Scientists are still debating exactly how Aristonectes is related to other plesiosaurs. For a long time it was thought to be a cryptoclidid, but now most agree it is an elasmosaurid.1

Kwa dintlha di tswang teng

  1. Aristonectes (en.wikipedia.org)
  2. A giant elasmosaurid (Sauropterygia; Plesiosauria) from Antarctica: New information on elasmosaurid body size diversity and aristonectine evolutionary scenarios (sciencedirect.com)
  3. Fossil 'sea monster' found in Antarctica was the heaviest of its kind | National Geographic (nationalgeographic.com)
  4. Aristonectes in The Paleobiology Database (CC BY 4.0): dingwaga, mafelo, dibopego tsa matlapa, thulaganyo.

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Tse dingwe tsa setlhopha se le sengwe: Dipleisiosoro

ElasmosaurusDipleisiosoroPliosaurusDipleisiosoroPlesiosaurusDipleisiosoroCimoliasaurusDipleisiosoroColymbosaurusDipleisiosoroTrinacromerumDipleisiosoro

Le tsona ke tsa nako e le nngwe: Bofelo jwa Cretaceous

TyrannosaurusDitiranosoroTriceratopsDidino tse di nang le dinakaVelociraptorDiraptoroSpinosaurusDispinosoroAnkylosaurusDidino tse di nang le thebeParasaurolophusMelomo-pidipidi
Fepa Rexnkgwana ya dikabo ya batho ba bagolo