Keilhauia

Zita rinoreva: “Keilhau's reptile”1

Raidya: NyamaMaikitiyosauroCretaceous YekutangaHarisi dhinosori chaizvo

Keilhauia was a dolphin-like marine reptile that lived in the Early Cretaceous, about 145 million years ago. It had large eyes and a long snout, and swam in the shallow seas near what is now Norway. It was about as long as a small car!1

Chokwadi chinonakidza: chinokambaira ichi chemugungwa chaishambira madhinosori achifamba panyika. Munhu wese anozviti madhino, asi zvaiva bazi rakasiyana rezvinokambaira.

Raivapo

makore mamiriyoni 143 kusvika 137 apfuura3

Cretaceous Yekutanga

Mafosiri akawanikwa:

Svalbard, Norway1

Kureba

3.8 kusvika 4.3 m (12 kusvika 14 ft)1

Kumhanya kwepamusoro

kunenge 47 km/h (29 mph)

Kushambira, fungidziro

Rairarama rini?

Triassic

Jurassic

Cretaceous

makore mamiriyoni 252 apfuura20114566, dombo guru rakabva mudenga

Raiva hombe sei?

Raiva refu zvakadii?

kureba seimbwa 4 kubva pamhino kusvika kumuswekureba semabhanana 24 akatevedzanaraigona kushambira kureba kwedziva guru rekushambira (50 m) mumasekonzi 3.8

Keilhauia raiva hombe sei kana richienzaniswa NEWE?

Masvomhu chete mubrowser yako. Hapana chinochengetwa kana kutumirwa kupi zvako.

Raimhanya zvakadii?

Munhu achifamba kunenge 5 km/h (3 mph)

Mwana ari pabhasikoro kunenge 12 km/h (7 mph)

Keilhauia kunenge 47 km/h (29 mph)

Bhiza richimhanya kunenge 65 km/h (40 mph)

Dindingwe kunenge 100 km/h (62 mph)

zvinhu zvinonakidza

Zvinonakidza

Keilhauia is known from only one fossil, discovered in 2010 on the island of Spitsbergen.1

Its species name, nui, comes from the acronym of a Norwegian youth environmental organization called Natur og Ungdom.1

It had a wide top end of its ilium (hip bone) and a short ischiopubis compared to its thigh bone, which helps scientists tell it apart from other ichthyosaurs.1

Keilhauia is the most complete ichthyosaur known from the Berriasian age, the very beginning of the Cretaceous Period.1

Its pelvic girdle is the most complete one ever found from the Cretaceous Period.2

It lived in a shallow sea with an oxygen-poor seafloor, where cold seeps supported many invertebrates like ammonites and brachiopods.1

Mufananidzo wakagadzirwa neAI: Keilhauia — Mufananidzo wakagadzirwa neAI unoratidza kuti Keilhauia ringangodai raitaridzika sei, wakagadzirwa nekombiyuta kubva pane zvinozivikanwa nemasayendisiti. Ifungidziro chete: mhuka chaiyo ingangodai yaitaridzika zvakasiyana, uye hapana anoziva mavara ayo chaiwo.

Zvevanyanzvi vemadhino

Zita resainzi: Keilhauia
Akaripa zita:: Delsett et al. 20173
Boka: Maikitiyosauro
Mhuri / boka: Ophthalmosauridae3
Kurongwa kwemhuka: Ichthyosauria > Ichthyosauromorpha3
Zera rematombo: makore mamiriyoni 143 kusvika 137 (Berriasian)3
Mapoka ematombo: Agardhfjellet3
Nyika: Svalbard3
Zvinyorwa zvemafosiri: 1 mu The Paleobiology Database3
Kuwanikwa: The first fossil of Keilhauia was found in 2010 by the Spitsbergen Mesozoic Research Group on Svalbard, Norway. Scientists named it in 2017 after the Norwegian geologist Baltazar Mathias Keilhau.1
Zvichiri kupokanwa: Scientists are unsure exactly how Keilhauia is related to other ichthyosaurs because its skull is not well preserved, so its family tree position is uncertain.1

Kunobva chokwadi

Keilhauia (en.wikipedia.org)
A New Ophthalmosaurid (Ichthyosauria) from Svalbard, Norway, and Evolution of the Ichthyopterygian Pelvic Girdle (eprints.soton.ac.uk)
Keilhauia in The Paleobiology Database (CC BY 4.0): zera, nzvimbo, mapoka ematombo, kurongwa kwemhuka.

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