Katin Dino No. 1685 na 2 027

Sisteronia

Sunan yana nufin: “Mallakin Sister, an sa mata suna bayan yankin Sisteron a Faransa”1

Ya ci: NamaIchthyosaursFarkon Cretaceous zuwa Ƙarshen CretaceousBa dinosaur ba ne a zahiri

Sisteronia dabba ce mai rarrafe a cikin ruwa wadda take yin iyo da sauri a zamanin Cretaceous. Tana da haƙora masu kaifi don kama ƙananan kifi da squid. Sisteronia ichthyosaur ce, ba dinosaur ba, kuma tana kama da dolphin na zamani.1 2

Gaskiya mai ban sha'awa: wannan dabbar ruwa mai rarrafe tana iyo yayin da dinosaur suke tafiya a ƙasa. Kowa yana kiran su dino, amma reshe ne daban na dabbobi masu rarrafe.

Ya rayu

shekaru miliyan 113 zuwa 94 da suka wuce3

Farkon Cretaceous zuwa Ƙarshen Cretaceous

Burbushin halittu da aka samo a

Ingila (Gault Formation, Cambridge Greensand Member), Faransa (Vocontian Basin), da Rasha3 1

Mafi girman gudu

kusan 46 km/h (29 mph)

Iyo, ƙiyasi

Yaushe ya rayu?

Triassic

Jurassic

Cretaceous

Shekaru miliyan 252 da suka wuce20114566, dutsen sararin samaniya (asteroid)

Yaya saurin sa yake?

Mutum yana tafiya kusan 5 km/h (3 mph)

Yaro a kan keke kusan 12 km/h (7 mph)

Sisteronia kusan 46 km/h (29 mph)

Doki mai gudu kusan 65 km/h (40 mph)

Damisa kusan 100 km/h (62 mph)

abubuwa masu ban sha'awa

Gaskiya mai ban sha'awa

Sisteronia tana da haƙoran da suke da siffar murabba'i idan aka yanka su, wanda hakan ba kasafai ake gani ba a cikin ichthyosaurs.2

Ta rayu a lokacin Albian da farkon Cenomanian na zamanin Cretaceous, kusan shekaru miliyan 112 zuwa 100 da suka wuce.2

An san Sisteronia daga ƙasusuwan da aka samu a Ingila, Faransa, da Rasha, wanda ke nuna cewa ta rayu a cikin tekunan yammacin Turai.3

Wannan ichthyosaur tana cikin rukunin Platypterygiinae, waɗanda su ne ichthyosaurs na ƙarshe da suka rayu kafin su halaka.2

Sunan Sisteronia ya fito ne daga garin Sisteron a Faransa, kusa da inda aka samu wasu ƙasusuwanta.1

Sisteronia tana da wani ɓangare da ya ɗago a ƙasan foramen magnum (rami a cikin ƙoƙon kai don igiyar jijiyoyin baya), wani abu na musamman da ba a gani a wasu ichthyosaurs ba.2

Hoton Sisteronia da aka yi da AI — Hoton yadda Sisteronia zai iya kasancewa wanda aka yi da AI, kwamfuta ce ta yi shi daga abin da masana kimiyya suka sani. Hasashe ne: ainihin dabbar za ta iya zama daban, kuma babu wanda ya san ainihin launukanta.

Don ƙwararrun dino

Sunan kimiyya: Sisteronia
Wanda ya ba da suna: Fischer et al. 20143
Rukuni: Ichthyosaurs
Iyali / rukuni: Ophthalmosauridae3
Rarrabewa: Ichthyosauria > Ichthyosauromorpha3
Zamanin duwatsu: shekaru miliyan 113 zuwa 94 (Albian / Cenomanian)3
Tsarin duwatsu: Marnes bleues, West Melbury Marly Chalk, Gault3
Kasashe: Birtaniya, Faransa, Russia3
Rubutun burbushin halittu: 6 a cikin Bayanan Paleobiology3
Gano: Fischer da abokan aikinsa ne suka sa wa Sisteronia suna a shekarar 2014, bisa ga ƙasusuwan da aka samu daga Cambridge Greensand Member a Ingila da Vocontian Basin a Faransa.3 1
Har yanzu ana muhawara: Masana har yanzu suna ta muhawara kan yadda ichthyosaurs na ƙarshen zamanin Cretaceous suka bambanta, da kuma ko Sisteronia wani ɓangare ne na babban wurin da ichthyosaurs suka yawaita a Turai.1

Inda bayanan suka fito

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): shekaru, wurare, nau'in duwatsu, rarrabawa.

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