Zer dino zara? Galdetegia
Dino borroka
Dino lasterketa
Dino minijokoak
Pegatina-albuma
Dino TOP zerrendak
Harritu nazazu!
Protognathosaurus
Protognathosaurus was a long-necked, plant-eating dinosaur that lived in what is now China during the Middle Jurassic. It is known only from a piece of its lower jaw, so scientists are still learning about it. Most researchers think it was a medium-sized sauropod.13
Noiz bizi izan zen?
Zein handia zen?
Zein luzea zen?
ilaran aparkatutako 22 auto bezain luze🍌bata bestearen atzean jarritako 560 banana bezain luze🏃100 metro 24 segundotan egin zitzakeen korrika (gizakirik azkarrenak 9,6 behar ditu)Zein handia zen Protognathosaurus ZUREKIN alderatuta?
Zure nabigatzaileko kalkulu hutsak. Ez da ezer gordetzen ez inora bidaltzen.
Zein azkarra zen?
Datu dibertigarriak
Protognathosaurus is known only from a single fossil: the front part of a left lower jaw, called a dentary.1
This dinosaur had 18 to 20 teeth in its lower jaw, and some of them were sharp replacement teeth still growing in.12
Its teeth had a sharp point and small serrations (like a steak knife) on the front and back edges.2
The name Protognathosaurus was first used in 1991 by George Olshevsky, because the original name Protognathus was already taken by a beetle.1
Most scientists consider Protognathosaurus a nomen dubium, meaning the fossil is too incomplete to be sure it is a distinct species.1
The jaw bone is thick and heavy, with a deep groove called the Meckelian canal, which is a feature of some early sauropods.2
Protognathosaurus: gehien egindako galderak
Dino adituentzat
- Izen zientifikoa
- Protognathosaurus
- Izendatzailea:
- Olshevsky 19913
- Taldea
- Lepo-luzeak
- Familia / klada
- Cetiosauridae3
- Sailkapena
- Sauropodomorpha > Sauropoda3
- Arroken adina
- 171 eta 155 milioi urte artean (Bajocian / Oxfordian)3
- Arroka-formazioak
- Shaximiao3
- Herrialdeak
- Txina3
- Fosil-erregistroak
- 1 The Paleobiology Database datu-basean3
- Aurkikuntza
- The fossil was found in the Dashanpu Dinosaur Quarry in Sichuan, China. It was named Protognathus oxyodon by Zhang Yihun in 1988, but that name was already used for a beetle, so George Olshevsky renamed it Protognathosaurus oxyodon in 1991.1
- Oraindik eztabaidagai
- Scientists are not sure if Protognathosaurus is a valid dinosaur or just a doubtful name, because only a piece of jaw has been found.1
Datuak nondik datozen
- Protognathosaurus (en.wikipedia.org)
- PBDB Taxon (paleobiodb.org)
- Protognathosaurus in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.
Orrialde honetako datu bakoitzak zenbaki bat du, bere iturrira eramaten zaituena. Zerbait gaizki badugu, barkatu, dino-zaleak gara, ez zientzia-aldizkari bat. Idatzi [email protected] helbidera eta konponduko dugu.
Rex gose da! Dino Wiki aita baten proiektua da, dinosauroak maite dituen bere semearentzat, doakoa, iragarkirik eta jarraitzailerik gabe. Helduek mokadutxo bat eman diezaiokete Rexi, sarean jarraitzen laguntzeko.Eman jaten Rexi
Brachiosaurus
Diplodocus
Brontosaurus
Argentinosaurus
Camarasaurus
Morosaurus
Ichthyosaurus
Khudiakovia
Ophthalmosaurus
Pterodactylus
Peloneustes
Rhamphocephalus