Khadi la dino Na. 1486 mwa 2 027

Protognathosaurus

Dzina limatanthauza: “early jaw lizard”1

Ankadya: ZomeraMakosi ataliPakati pa Jurasiki mpaka Kumapeto kwa Jurasiki

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.1 3

Ankakhala

zaka 171 mpaka 155 miliyoni zapitazo3

Pakati pa Jurasiki mpaka Kumapeto kwa Jurasiki

Mafosili apezeka ku

Dashanpu Dinosaur Quarry, Sichuan, China3 1

Utali

10 mpaka 100 m (33 mpaka 328 ft)2

Liwiro lalikulu kwambiri

pafupifupi 15 km/h (9 mph)

Kuthamanga, kuyerekeza

Ankakhala liti?

Triasiki

Jurasiki

Kretase

Zaka 252 miliyoni zapitazo20114566, asteroidi

Anali wamkulu bwanji?

Anali wautali bwanji?

wautali ngati magalimoto 22 oimikidwa pamzerewautali ngati nthochi 560 zotsatizanaakanatha kuthamanga mamita 100 m'masekondi 24 (munthu waliwiro kwambiri amafunika 9.6)

Protognathosaurus anali wamkulu bwanji poyerekeza ndi IWEYO?

Ndi masamu chabe mu msakatuli wako. Palibe chimene chimasungidwa kapena kutumizidwa kwina kulikonse.

Anali ndi liwiro lotani?

Munthu akuyenda pafupifupi 5 km/h (3 mph)

Mwana pa njinga pafupifupi 12 km/h (7 mph)

Protognathosaurus pafupifupi 15 km/h (9 mph)

Hatchi ikuthamanga pafupifupi 65 km/h (40 mph)

Kakwiyo pafupifupi 100 km/h (62 mph)

zinthu zosangalatsa

Mfundo zosangalatsa

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.1 2

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

Chithunzi cha Protognathosaurus chopangidwa ndi AI — Chithunzi cha momwe Protognathosaurus mwina ankaonekera, chopangidwa ndi kompyuta kuchokera pa zomwe asayansi amadziwa. Ndi kungoyerekeza: nyama yeniyeniyo mwina inkaoneka mosiyana, ndipo palibe amene akudziwa mitundu yake yeniyeni.

mwafunsa

Mafunso ofunsidwa kwambiri okhudza Protognathosaurus

?How big was Protognathosaurus?

Scientists don't know exactly, because only a jaw bone has been found. It was probably a medium-sized sauropod, maybe 10 to 20 metres long.1 3

?What did Protognathosaurus eat?

It was a herbivore, meaning it ate plants. Its sharp, serrated teeth helped it chew tough leaves.1 3

Kwa akatswiri a madino

Dzina la sayansi: Protognathosaurus
Anapatsidwa dzina ndi: Olshevsky 19913
Gulu: Makosi atali
Banja / kladi: Cetiosauridae3
Magawidwe a sayansi: Sauropodomorpha > Sauropoda3
Zaka za miyala: zaka 171 mpaka 155 miliyoni (Bajocian / Oxfordian)3
Mapangidwe a miyala: Shaximiao3
Mayiko: China3
Zolemba za mafosili: 1 mu The Paleobiology Database3
Kupezeka: 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
Akukambiranabe: 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

Kumene mfundo zimachokera

Protognathosaurus (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Protognathosaurus in The Paleobiology Database (CC BY 4.0): zaka, malo, mapangidwe a miyala, magawidwe a sayansi.

Mfundo iliyonse patsamba lino ili ndi nambala yosonyeza kumene yachokera. Ngati talakwitsa kanthu, pepa, ndife okonda madino, osati magazini ya sayansi. Tiuze pa [email protected] ndipo tikonza.

Rex ali ndi njala! Dino Wiki ndi ntchito ya bambo kwa mwana wawo wamwamuna wokonda madainoso, yaulere popanda zotsatsa ndi zokazonda. Akuluakulu angadyetse Rex zokhwasula-khwasula kuti tsambali lipitirize kupezeka pa intaneti.Dyetsa Rex