Alexandronectes

Lebitso le bolela: “Alexander's swimmer, after Alexander McKay who found the fossils”1

E jele: NamaDiplesiosaureKretase ya MoraoHa se dinosaure ho ya ka saense

Alexandronectes was a long-necked marine reptile that swam in the seas around New Zealand near the end of the Age of Dinosaurs. It was a type of plesiosaur called an elasmosaurid, with a big head and a short neck compared to other elasmosaurids. It used its strong flippers to paddle through the water and hunt for fish and squid.1 2

Ntlha e monate: sehahabi sena sa lewatle se ne se sesa ha didinosaure di ntse di tsamaya naheng. Bohle ba di bitsa didinosaure, empa e ne e le lekala le leng la dihahabi.

E phetse

dilemo tse dimilione tse 84 ho isa ho 66 tse fetileng4

Kretase ya Morao

Difosili di fumanwe ho

Waipara River, north of Christchurch, Canterbury, New Zealand3 1

Lebelo le phahameng ka ho fetisisa

e ka bang 27 km/h (17 mph)

Ho sesa, kakanyo

E phetse neng?

Triasiki

Jurasiki

Kretase

Dilemo tse dimilione tse 252 tse fetileng20114566, asteroiti

E ne e le lebelo hakae?

Motho ya tsamayang ka maoto e ka bang 5 km/h (3 mph)

Ngwana a palame baesekele e ka bang 12 km/h (7 mph)

Alexandronectes e ka bang 27 km/h (17 mph)

Pere e mathang ka matla e ka bang 65 km/h (40 mph)

Lengau e ka bang 100 km/h (62 mph)

dintho tse monate

Dintlha tse monate

Alexandronectes was a type of plesiosaur called an aristonectine, a group known for having unusually large skulls compared to other elasmosaurids.1

Its skull was smaller than those of other aristonectines like Kaiwhekea and Aristonectes, showing that not all members of this group were giants.1

The fossils of Alexandronectes were collected in 1872 by Alexander McKay, a famous New Zealand fossil hunter, but scientists did not name the animal until 2016.1 3

Its name means 'Alexander's swimmer from Zealandia', referring to the ancient continent that New Zealand is part of.1

Alexandronectes lived about 70 million years ago, during the early Maastrichtian stage of the Late Cretaceous.1 3

The only known fossils are two pieces of the back of the skull, which were originally thought to belong to two different animals.1

Setshwantsho sa Alexandronectes se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Alexandronectes e ka beng e ne e shebahala kateng, se entswe ke khomphutha ho ya ka seo bo-ramahlale ba se tsebang. Ke ho hakanya feela: phoofolo ya nnete e ka nna ya ba e ne e shebahala ka tsela e nngwe, mme ha ho motho ya tsebang mebala ya yona ya nnete.

o botsitse

Dipotso tse botswang haholo ka Alexandronectes

?Was Alexandronectes a dinosaur?

No, it was a plesiosaur, a type of long-necked marine reptile that lived in the oceans, not a dinosaur.3

?How big was Alexandronectes?

Scientists do not know its exact size because only parts of its skull have been found. Its skull was smaller than those of other aristonectines like Kaiwhekea and Aristonectes.3 1

?What did Alexandronectes eat?

It likely ate fish and squid, using its strong flippers to paddle through the water and hunt.3

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Alexandronectes
E rehilwe ke: Otero et al. 20164
Sehlopha: Diplesiosaure
Lelapa / leloko: Elasmosauridae4
Tlhophiso: Plesiosauria > Elasmosauridae > Sauropterygia4
Dilemo tsa mafika: dilemo tse dimilione tse 84 ho isa ho 66 (Campanian / Maastrichtian)4
Dibopeho tsa mafika: Conway4
Dinaha: New Zealand4
Direkoto tsa difosili: 1 ho The Paleobiology Database4
Ho sibollwa: The fossils were found in 1872 by Alexander McKay near the Waipara River in New Zealand. They were stored at the Canterbury Museum for over 140 years before being studied and named Alexandronectes zealandiensis in 2016.1 3
E sa ntse e phehwa kgang: Scientists are not sure exactly how big Alexandronectes was, because only a partial skull has been found.1

Moo dintlha di tswang teng

UJVP_A_1054494_O (sedici.unlp.edu.ar)
PBDB Taxon (paleobiodb.org)
Alexandronectes (en.wikipedia.org)
Alexandronectes in The Paleobiology Database (CC BY 4.0): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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