Dino kad No. 1685 wɔ 2 027 mu

Sisteronia

Din no ase: “Sister's own, named after the Sisteron region in France”1

Ɔdii: NamIktiosɔɔKretasias Mfiase kɔsi Kretasias AwieeɛNyansahu mu deɛ, ɔnyɛ dinosɔɔ

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

Asɛm a ɛyɛ anigye: ɛpo mu aboa a ɔwea yi guaree berɛ a dinosɔɔ nantew asase so. Obiara frɛ wɔn dino, nanso na wɔyɛ mmoa a wɔwea abusua foforɔ.

Ɔtenaa ase

mfeɛ ɔpepem 113 kɔsi 94 a atwam3

Kretasias Mfiase kɔsi Kretasias Awieeɛ

Wɔhunuu fɔsil wɔ

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

Ntɛmntɛm a ɛsen biara

bɛyɛ 46 km/h (29 mph)

Nsuguareɛ, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Triasik

Jurasik

Kretasias

mfeɛ ɔpepem 252 a atwam20114566, ɔsoro ɛboɔ no

Na ɛyɛ ntɛm sɛn?

Onipa a ɔnante bɛyɛ 5 km/h (3 mph)

Abofra a ɔte sakre so bɛyɛ 12 km/h (7 mph)

Sisteronia bɛyɛ 46 km/h (29 mph)

Ɔpɔnkɔ a ɔretu mmirika bɛyɛ 65 km/h (40 mph)

Kyiita bɛyɛ 100 km/h (62 mph)

nneɛma a ɛyɛ fɛ

Nsɛm a ɛyɛ anigye

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

Yei yɛ Sisteronia mfonini a AI yɛeɛ, sɛdeɛ ebia na ɔteɛ. Kɔmputa na ɛyɛeɛ firi deɛ nyansahufoɔ nim mu. Ɛyɛ nsusuiɛ: ebia na aboa ankasa no nte saa, na obiara nnim ne kɔla ankasa.

Ma dino ho animdefoɔ

Nyansahu din: Sisteronia
Obi a ɔtoo din: Fischer et al. 20143
Kuo: Iktiosɔɔ
Abusua / kuo kɛseɛ: Ophthalmosauridae3
Nkyekyɛmu: Ichthyosauria > Ichthyosauromorpha3
Abotan no mfeɛ: mfeɛ ɔpepem 113 kɔsi 94 (Albian / Cenomanian)3
Abotan nhyehyɛeɛ: Marnes bleues, West Melbury Marly Chalk, Gault3
Aman: Engiresi, Frɛnse, Rɔhyea3
Fɔsil nkyerɛwee: 6 wɔ The Paleobiology Database mu3
Nhunumu: 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
Wɔda so gye ho akyinnye: 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

Baabi a nsɛm no firi

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): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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