Alexandronectes

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

E jele: NamaDipleisiosoroBofelo jwa CretaceousKa saense, ga se dinosoro

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 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

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

Bonako jo bogolo

e ka nna 27 km/h (17 mph)

Go thuma, kakanyo

E tshetse leng?

Triassic

Jurassic

Cretaceous

dimilione tsa dingwaga di le 252 tse di fetileng20114566, asteroiti

E ne e le bonako go le kae?

Motho yo o tsamayang e ka nna 5 km/h (3 mph)

Ngwana mo baesekeleng e ka nna 12 km/h (7 mph)

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

Pitse e e sianang ka bonako e ka nna 65 km/h (40 mph)

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

dilo tse di monate

Dintlha tse di 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 se dirilweng ke AI — Setshwantsho se se dirilweng ke AI sa kafa Alexandronectes 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 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

Ya baitseanape ba didino

Leina la saense: Alexandronectes
Leina le neilwe ke: Otero et al. 20164
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: Conway4
Dinaga: New Zealand4
Direkoto tsa difosili: 1 mo The Paleobiology Database4
Go fitlhelwa: 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
Go sa ntse go ganetsanwa: Scientists are not sure exactly how big Alexandronectes was, because only a partial skull has been found.1

Kwa 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): dingwaga, mafelo, dibopego tsa matlapa, thulaganyo.

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