Kartu dino No. 1685 ci 2 027

Sisteronia

Tur bi mooy: “Sister's own, named after the Sisteron region in France”1

Lekkoon: YàppIktiyosoor yiKretase bu jëkk ba Kretase bu mujjCi xam-xam, du dinosoor

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

Xibaar bu neex: reptil bu géej bii dafa daan féey ci jamono yi dinosoor yi daan dox ci suuf. Ñépp dañu leen di wooye dino, waaye beneen caru reptil lañu woon.

Dundoon

am na 113 ba 94 milyoŋ at3

Kretase bu jëkk ba Kretase bu mujj

Fosil yu ñu gis ci

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

Gaawaay bi gën a kawe

lu tollu ci 46 km/h (29 mph)

Féey, jortu

Kañ la dundoon?

Triyaas

Jurasik

Kretase

Am na 252 milyoŋ at20114566, asteroyid bi

Naka la gaawoon?

Nit kuy dox lu tollu ci 5 km/h (3 mph)

Xale bu nekk ci welo lu tollu ci 12 km/h (7 mph)

Sisteronia lu tollu ci 46 km/h (29 mph)

Fas buy daw bu gaaw lu tollu ci 65 km/h (40 mph)

Segg bu gaaw lu tollu ci 100 km/h (62 mph)

yëf yu neex

Xibaar yu neex

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

Nataalu Sisteronia bu ñu def ak IA — Nataal bu IA def la, muy wone ni Sisteronia mën a meloon, ordinatëer moo ko def ci li boroom xam-xam yi xam. Jortu kese la: rab bi ci dëgg mën na meloon neneen, te kenn xamul ay kulëëram yu dëgg.

Ngir ñi xam dino lool

Turu xam-xam: Sisteronia
Ku ko tudde: Fischer et al. 20143
Kurél: Iktiyosoor yi
Njaboot / klad: Ophthalmosauridae3
Klasifikasiyoŋ: Ichthyosauria > Ichthyosauromorpha3
Màggaayu doj yi: 113 ba 94 milyoŋ at (Albian / Cenomanian)3
Formasiyoŋi doj: Marnes bleues, West Melbury Marly Chalk, Gault3
Réew yi: Angalteer, Faraas, Riisi3
Fosil yu ñu gis: 6 ci The Paleobiology Database3
Gisees: 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
Ñu ngi koy werante ba tey: 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

Fa xibaar yi jóge

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): at, béréb yi, formasiyoŋi doj, klasifikasiyoŋ.

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