Carta da dino nr. 0071 da 2 027

Alexandronectes

Il num vul dir: “Alexander's swimmer, after Alexander McKay who found the fossils”1

Mangiava: CharnPlesiosaursCretacic tardivTecnicamain betg in dinosaur

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

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 84 fin 66 milliuns onns4

Cretacic tardiv

Fossils chattads en

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

Spertadad maximala

var 27 km/h (17 mph)

Nudar, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

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)

Alexandronectes var 27 km/h (17 mph)

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

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

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

Maletg da Alexandronectes fatg cun IA — In maletg fatg cun IA che mussa co Alexandronectes 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 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

Per experts da dinos

Num scientific: Alexandronectes
Numnà da: Otero et al. 20164
Gruppa: Plesiosaurs
Famiglia / clada: Elasmosauridae4
Classificaziun: Plesiosauria > Elasmosauridae > Sauropterygia4
Vegliadetgna da la crappa: 84 fin 66 milliuns onns (Campanian / Maastrichtian)4
Formaziuns da crap: Conway4
Pajais: Nova Zelanda4
Chats da fossils: 1 en The Paleobiology Database4
Scuverta: 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
Anc discutà: Scientists are not sure exactly how big Alexandronectes was, because only a partial skull has been found.1

Danunder che vegnan ils fatgs

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): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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