Sisteronia

Lebitso le bolela: “Sister's own, named after the Sisteron region in France”1

E jele: NamaDiikhthiosaureKretase ya Pele ho isa ho Kretase ya MoraoHa se dinosaure ho ya ka saense

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

Ntlha e monate: sehahabi sena sa lewatle se ne se sesa ha didinosaure di ntse di tsamaya naheng. Bohle ba di bitsa didinosaure, empa e ne e le lekala le leng la dihahabi.

E phetse

dilemo tse dimilione tse 113 ho isa ho 94 tse fetileng3

Kretase ya Pele ho isa ho Kretase ya Morao

Difosili di fumanwe ho

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

Lebelo le phahameng ka ho fetisisa

e ka bang 46 km/h (29 mph)

Ho sesa, kakanyo

E phetse neng?

Triasiki

Jurasiki

Kretase

Dilemo tse dimilione tse 252 tse fetileng20114566, asteroiti

E ne e le lebelo hakae?

Motho ya tsamayang ka maoto e ka bang 5 km/h (3 mph)

Ngwana a palame baesekele e ka bang 12 km/h (7 mph)

Sisteronia e ka bang 46 km/h (29 mph)

Pere e mathang ka matla e ka bang 65 km/h (40 mph)

Lengau e ka bang 100 km/h (62 mph)

dintho tse monate

Dintlha tse monate

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

Setshwantsho sa Sisteronia se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Sisteronia e ka beng e ne e shebahala kateng, se entswe ke khomphutha ho ya ka seo bo-ramahlale ba se tsebang. Ke ho hakanya feela: phoofolo ya nnete e ka nna ya ba e ne e shebahala ka tsela e nngwe, mme ha ho motho ya tsebang mebala ya yona ya nnete.

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Sisteronia
E rehilwe ke: Fischer et al. 20143
Sehlopha: Diikhthiosaure
Lelapa / leloko: Ophthalmosauridae3
Tlhophiso: Ichthyosauria > Ichthyosauromorpha3
Dilemo tsa mafika: dilemo tse dimilione tse 113 ho isa ho 94 (Albian / Cenomanian)3
Dibopeho tsa mafika: Marnes bleues, West Melbury Marly Chalk, Gault3
Dinaha: United Kingdom, Fora, Russia3
Direkoto tsa difosili: 6 ho The Paleobiology Database3
Ho sibollwa: 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
E sa ntse e phehwa kgang: 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

Moo dintlha di tswang teng

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): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

Ntlha e nngwe le e nngwe leqepheng lena e na le nomoro e supang mohlodi wa yona. Haeba re fositse ho hong, re kopa tshwarelo, re balatedi ba didinosaure, ha re koranta ya saense. Re bolelle ho [email protected] mme re tla e lokisa.

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