Palatodonta
Palatodonta wuxuu ahaa xamaarato yar oo badda ku noolayd qiyaastii 245 milyan oo sano ka hor. Waxa uu lahaa saf ilko fiiqan ah oo ku yaalla saqafka afkiisa, kuwaas oo uu u badan tahay in uu u isticmaali jiray in uu dhoobada jilicsan ka dhex raadiyo xayawaan yar yar oo uu cuno. Wuxuu ahaa qaraabo hore oo ka tirsan placodonts, kuwaas oo ahaa xamaarato leh ilko fidsan oo ay ku burburiyaan qolofleyda.12
Goorma ayuu noolaa?
Intee in le'eg ayuu u dheereeyay?
Xaqiiqooyin xiiso leh
Palatodonta wuxuu lahaa hal saf oo ka kooban ugu yaraan 10 ilig oo dhuuban oo fiiqan oo ku yaalla saqafka afkiisa, taas oo ka duwan ilkaha fidsan ee waaweyn ee placodonts-ka dambe.1
Ilkihiisa hore waxay ahaayeen kuwo caajis ah, sida biinka oo kale, oo xoogaa hore u soo jeeda, kuwaas oo la mid ah kuwa Placodus, oo u isticmaali jiray inuu ku soo qaato xayawaanka qolofka adag leh.1
Lafta kaliya ee la yaqaan waa madax yar, markaa saynisyahannadu waxay u malaynayaan inuu ahaa xayawaan yar markii uu dhintay.1
Palatodonta wuxuu ku noolaa horraantii Middle Triassic, qiyaastii 247 ilaa 241 milyan oo sano ka hor, badda gacmeed oo daboolaysay qayb ka mid ah Yurub.31
Madaxiisu wuxuu lahaa laf dhaban oo u eg xarafka L, taas oo ah sifo ku xirta placodonts-ka hore.1
Palatodonta waa placodontiform-ka ugu aasaasiga ah ee la yaqaan, taas oo macnaheedu yahay inuu ka go'ay ka hor inta aysan placodonts-ka dhabta ah yeelan ilkahooda gaarka ah ee wax burburiya.1

Su'aalaha ugu badan ee ku saabsan Palatodonta
?Intee in le'eg ayuu ahaa Palatodonta?
Lafta kaliya ee la yaqaan waa madax yar oo dhererkiisu yahay qiyaastii 2 cm (0.8 inches). Dadka waaweyn waxaa laga yaabaa inay xoogaa ka weynaayeen, laakiin lama helin lafo dad waaweyn.1
?Maxuu cuni jiray Palatodonta?
Wuxuu u isticmaali jiray ilkahiisa hore ee caajiska ah inuu dhoobada jilicsan ee sagxadda badda ka dhex raadiyo xayawaan yar yar oo jilicsan sida dirxiga ama qolofleyda yaryar.1

Weydii Rex wax ku saabsan Palatodonta
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Burinta khuraafaadka
Khuraafaad: Dadka qaar ayaa laga yaabaa inay u fikiraan in Palatodonta uu ahaa dinosaur sababtoo ah wuxuu ku noolaa xilligii Mesozoic.
Runta: Palatodonta wuxuu ahaa xamaarato badda ku nool, gaar ahaan sauropterygian, ee ma ahayn dinosaur. Dinosaurs waxay ahaayeen xamaarato dhulka ku nool, Palatodonta-na wuxuu ku noolaa badda.21
Khubarada dino
- Magaca sayniska
- Palatodonta
- Waxaa magacaabay
- Neenan et al. 20134
- Koox
- Xayawaanka badda
- Qoyska / kooxda
- Placodontiformes4
- Kala soocidda
- Sauropterygia4
- Xilligii dhagaxyada
- 247 ilaa 241 milyan oo sano ()4
- Dhagaxyada
- Vossenveld4
- Waddamada
- Netherlands4
- Diiwaanka fossil-ka
- 1 oo ku jira Paleobiology Database4
- Daahfurka
- Palatodonta waxaa magacaabay Neenan iyo asxaabtiisa sanadkii 2013, iyadoo lagu salaynayo lafo madax ah oo uu helay Remco Bleeker oo ku yaalla Winterswijk, Netherlands. Magaca nooca bleekeri wuxuu sharfayaa qofkii helay.13
- Wali waa la isku khilaafsan yahay
- Saynisyahannadu weli way ka doodayaan sida saxda ah ee Palatodonta ula xiriirto xamaaratada kale ee badda, iyo haddii ay dhab ahaantii matalayso asalkii Yurub ee placodonts ama haddii ay meel kale ka soo jeedaan.1
Halka xaqiiqadu ka timaaddo
- European origin of placodont marine reptiles and the evolution of crushing dentition in Placodontia | Nature Communications (nature.com)
- Palatodonta (en.wikipedia.org)
- PBDB Taxon (paleobiodb.org)
- Palatodonta in The Paleobiology Database (CC BY 4.0): da'da, meelaha, qaab-dhismeedka dhagaxyada, kala-soocidda.
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