Carta da dino nr. 1685 da 2 027

Sisteronia

Il num vul dir: “Sister's own, named after the Sisteron region in France”1

Mangiava: CharnIctiosaursCretacic tempriv fin Cretacic tardivTecnicamain betg in dinosaur

Sisteronia was a fast-swimming marine reptile that lived in the Cretaceous seas. It had sharp teeth for catching small fish and squid. Sisteronia was an ichthyosaur, not a dinosaur, and looked a bit like a modern dolphin.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 113 fin 94 milliuns onns3

Cretacic tempriv fin Cretacic tardiv

Fossils chattads en

England (Gault Formation, Cambridge Greensand Member), France (Vocontian Basin), and Russia3 1

Spertadad maximala

var 46 km/h (29 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)

Sisteronia var 46 km/h (29 mph)

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

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

Sisteronia had teeth that were rectangular in cross-section, which is unusual among ichthyosaurs.2

It lived during the Albian and early Cenomanian stages of the Cretaceous, about 112 to 100 million years ago.2

Sisteronia is known from fossils found in England, France, and Russia, showing it lived in the seas of western Europe.3

This ichthyosaur belonged to the group Platypterygiinae, which were the last surviving ichthyosaurs before they went extinct.2

The name Sisteronia comes from the town of Sisteron in France, near where some of its fossils were found.1

Sisteronia had a raised process on the floor of the foramen magnum (the hole in the skull for the spinal cord), a unique feature not seen in other ichthyosaurs.2

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

Per experts da dinos

Num scientific: Sisteronia
Numnà da: Fischer et al. 20143
Gruppa: Ictiosaurs
Famiglia / clada: Ophthalmosauridae3
Classificaziun: Ichthyosauria > Ichthyosauromorpha3
Vegliadetgna da la crappa: 113 fin 94 milliuns onns (Albian / Cenomanian)3
Formaziuns da crap: Marnes bleues, West Melbury Marly Chalk, Gault3
Pajais: Reginavel Unì, Frantscha, Russia3
Chats da fossils: 6 en The Paleobiology Database3
Scuverta: Sisteronia was named by Fischer and colleagues in 2014, based on fossils from the Cambridge Greensand Member in England and the Vocontian Basin in France.3 1
Anc discutà: Scientists are still debating exactly how diverse late Cretaceous ichthyosaurs were, and whether Sisteronia was part of a broader European hotspot of ichthyosaur diversity.1

Danunder che vegnan ils fatgs

High Diversity in Cretaceous Ichthyosaurs from Europe Prior to Their Extinction (pmc.ncbi.nlm.nih.gov)
Sisteronia (en.wikipedia.org)
Sisteronia in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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