Carta da dino nr. 1040 da 2 027

Leurospondylus

Il num vul dir: “smooth vertebra”1

Mangiava: CharnPlesiosaursCretacic tardivTecnicamain betg in dinosaur

Leurospondylus was a plesiosaur, a long-necked marine reptile that lived in the Late Cretaceous period. It swam in rivers and estuaries in what is now Alberta, Canada. Scientists think it may have spent its early life in brackish water.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 onns2

Cretacic tardiv

Fossils chattads en

Alberta, Canada (Horseshoe Canyon Formation, Red Deer River)1 2

Lunghezza

fin 2 m (6,6 ft)1

Spertadad maximala

var 27 km/h (17 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 giats da chasa dal nas a la cuauschè lung sco 11 bananas ina suenter l'autrapudess nudar la lunghezza d'ina gronda piscina (50 m) en 6,7 secundas

Quant grond era Leurospondylus 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)

Leurospondylus 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

The only known fossil of Leurospondylus is a juvenile that was about 2 meters long. Adults may have been much larger.1

Its name means 'smooth vertebra' because its backbone bones were flat and wider than they were long.1

Leurospondylus lived in brackish water (a mix of fresh and salt water) in rivers and estuaries. This is unusual because most plesiosaurs lived in the open ocean.1

When it was first described in 1913, Leurospondylus was thought to be the last known plesiosaur fossil. Its species name 'ultimus' means 'last' in Latin.1

Scientists are not sure which family Leurospondylus belongs to. Its vertebrae look like those of pliosaurs, but its shoulder and hip bones resemble those of elasmosaurids.1

The fossil was found on the east bank of the Red Deer River in Alberta, Canada, in rocks that are about 72 to 66 million years old.2 1

Maletg da Leurospondylus fatg cun IA — In maletg fatg cun IA che mussa co Leurospondylus 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.

Chatschader da mitus

Mitus: Leurospondylus was a dinosaur.

Vardad: Leurospondylus was a plesiosaur, a marine reptile that lived in the sea and rivers. Plesiosaurs are not dinosaurs.1

Per experts da dinos

Num scientific: Leurospondylus
Numnà da: Brown 19132
Gruppa: Plesiosaurs
Famiglia / clada: Elasmosauridae2
Classificaziun: Plesiosauria > Elasmosauridae > Sauropterygia2
Vegliadetgna da la crappa: 72 fin 66 milliuns onns (Maastrichtian)2
Formaziuns da crap: Horseshoe Canyon2
Pajais: Canada2
Chats da fossils: 1 en The Paleobiology Database2
Scuverta: Leurospondylus was named by Barnum Brown in 1913 based on a juvenile fossil found in the Horseshoe Canyon Formation of Alberta, Canada.1 2
Anc discutà: Scientists still debate whether Leurospondylus belongs to the family Elasmosauridae or to a different group, because its bones show a mix of features.1

Danunder che vegnan ils fatgs

Leurospondylus (en.wikipedia.org)
Leurospondylus in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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