Carta da dino nr. 0012 da 2 027

Acamptonectes

Il num vul dir: “stiff swimmer”1

Mangiava: CharnIctiosaursCretacic temprivTecnicamain betg in dinosaur

Acamptonectes was a fast-swimming marine reptile that lived in the Early Cretaceous seas. It had a stiff body and large eyes, perfect for hunting fish and squid in the deep ocean.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 133 fin 126 milliuns onns3

Cretacic tempriv

Fossils chattads en

England (Speeton Clay Formation) and Germany1 3

Lunghezza

3 m (9,8 ft)1

Spertadad maximala

var 48 km/h (30 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 3 chauns dal nas a la cuauschè lung sco 17 bananas ina suenter l'autrapudess nudar la lunghezza d'ina gronda piscina (50 m) en 3,8 secundas

Quant grond era Acamptonectes 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)

Acamptonectes var 48 km/h (30 mph)

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

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

Acamptonectes belongs to a group called ophthalmosaurids, which had very large eyes for seeing in dark, deep water.1 2

Its name means 'stiff swimmer' because its body was unusually rigid, helping it move fast through the water.1

Acamptonectes lived about 133 to 129 million years ago, during the Hauterivian stage of the Early Cretaceous.1

Scientists once thought most ichthyosaurs died out at the end of the Jurassic, but Acamptonectes shows they survived and thrived into the Cretaceous.2 1

The first Acamptonectes fossil was found in 1958 by geology students near Speeton, England, but it was not named until 2012.2 1

Its teeth had tiny ridges along the length, which helped it grip slippery prey like fish and squid.1

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

?Was Acamptonectes a dinosaur?

No, it was a marine reptile called an ichthyosaur, not a dinosaur.1

?How big was Acamptonectes?

It was about 3 metres (9.8 feet) long.1

?What did Acamptonectes eat?

It likely ate soft, fleshy prey like fish and squid, using its slender ridged teeth to impale them.1

?Why did Acamptonectes have a stiff body?

Its stiff body helped it swim fast like a tuna by making it more streamlined in the water.1

Chatschader da mitus

Mitus: Many people think all ichthyosaurs went extinct at the end of the Jurassic.

Vardad: Acamptonectes and other ophthalmosaurids lived well into the Cretaceous, showing no mass extinction at that time.2 1

Per experts da dinos

Num scientific: Acamptonectes
Numnà da: Fischer et al. 20123
Gruppa: Ictiosaurs
Famiglia / clada: Ophthalmosauridae3
Classificaziun: Ichthyosauria > Ichthyosauromorpha3
Vegliadetgna da la crappa: 133 fin 126 milliuns onns (Hauterivian)3
Formaziuns da crap: Speeton Clay3
Pajais: Reginavel Unì, Germania3
Chats da fossils: 3 en The Paleobiology Database3
Scuverta: Acamptonectes was named in 2012 by a team of scientists including V. Fischer, M. W. Maisch, and D. Naish. The first specimen was collected in 1958 by geology students in Speeton, England, but it took decades to study and describe.2 3
Anc discutà: Scientists are still debating whether Acamptonectes had a different diet or lifestyle from other Cretaceous ichthyosaurs because of its unusual shallow snout and tooth shape.1

Danunder che vegnan ils fatgs

Acamptonectes (en.wikipedia.org)
New Ophthalmosaurid Ichthyosaurs from the European Lower Cretaceous Demonstrate Extensive Ichthyosaur Survival across the Jurassic, Cretaceous Boundary (pmc.ncbi.nlm.nih.gov)
Acamptonectes in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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