ບັດໄດໂນ ເລກທີ 1486 ຈາກ 2 027

Protognathosaurus

ຊື່ໝາຍຄວາມວ່າ: “early jaw lizard”1

ກິນ: ພືດໄດໂນຄໍຍາວຈູຣາສຊິກຕອນກາງ ຫາ ຈູຣາສຊິກຕອນປາຍ

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

ມີຊີວິດຢູ່

171 ຫາ 155 ລ້ານປີກ່ອນ3

ຈູຣາສຊິກຕອນກາງ ຫາ ຈູຣາສຊິກຕອນປາຍ

ພົບຟອສຊິລທີ່

Dashanpu Dinosaur Quarry, Sichuan, China3 1

ຄວາມຍາວ

10 ຫາ 100 m (33 ຫາ 328 ft)2

ຄວາມໄວສູງສຸດ

ປະມານ 15 ກມ/ຊມ (9 ໄມລ໌/ຊມ)

ແລ່ນ, ຄ່າປະມານ

ມັນມີຊີວິດຢູ່ເມື່ອໃດ?

ໄທຣແອສຊິກ

ຈູຣາສຊິກ

ຄຣີເທເຊຍສ

252 ລ້ານປີກ່ອນ20114566, ດາວເຄາະນ້ອຍຕົກ

ມັນໃຫຍ່ປານໃດ?

ມັນຍາວປານໃດ?

ຍາວເທົ່າລົດຍົນ 22 ຄັນຈອດຮຽງກັນຍາວເທົ່າກ້ວຍ 560 ໜ່ວຍຕໍ່ກັນແລ່ນ 100 ແມັດໄດ້ໃນ 24 ວິນາທີ (ຄົນທີ່ໄວທີ່ສຸດໃຊ້ 9.6)

Protognathosaurus ໃຫຍ່ປານໃດ ເມື່ອທຽບກັບເຈົ້າ?

ແຄ່ຄິດໄລ່ໃນບຣາວເຊີຂອງເຈົ້າ. ບໍ່ມີຫຍັງຖືກບັນທຶກ ຫຼື ສົ່ງໄປໃສ.

ມັນໄວປານໃດ?

ຄົນຍ່າງ ປະມານ 5 ກມ/ຊມ (3 mph)

ເດັກຂີ່ລົດຖີບ ປະມານ 12 ກມ/ຊມ (7 mph)

Protognathosaurus ປະມານ 15 ກມ/ຊມ (9 mph)

ມ້າກຳລັງຄວບ ປະມານ 65 ກມ/ຊມ (40 mph)

ເສືອຊີຕາ ປະມານ 100 ກມ/ຊມ (62 mph)

ເລື່ອງເທ່ໆ

ເລື່ອງໜ້າຮູ້ມ່ວນໆ

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

ຮູບ Protognathosaurus ທີ່ AI ສ້າງ — ຮູບທີ່ AI ສ້າງ ສະແດງວ່າ Protognathosaurus ອາດຈະມີໜ້າຕາແນວໃດ, ຄອມພິວເຕີສ້າງຂຶ້ນຈາກສິ່ງທີ່ນັກວິທະຍາສາດຮູ້. ມັນເປັນການຄາດເດົາ: ສັດໂຕແທ້ອາດຈະມີໜ້າຕາຕ່າງອອກໄປ, ແລະ ບໍ່ມີໃຜຮູ້ສີແທ້ຂອງມັນ.

ເຈົ້າຖາມມາ

ຄຳຖາມທີ່ຖືກຖາມຫຼາຍທີ່ສຸດກ່ຽວກັບ 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

ສຳລັບຜູ້ຊ່ຽວຊານໄດໂນ

ຊື່ວິທະຍາສາດ: Protognathosaurus
ຕັ້ງຊື່ໂດຍ: Olshevsky 19913
ກຸ່ມ: ໄດໂນຄໍຍາວ
ຄອບຄົວ / ເຄລດ: Cetiosauridae3
ການຈັດໝວດໝູ່: Sauropodomorpha > Sauropoda3
ອາຍຸຂອງຫີນ: 171 ຫາ 155 ລ້ານປີ (Bajocian / Oxfordian)3
ຊັ້ນຫີນ: Shaximiao3
ປະເທດ: ຈີນ3
ບັນທຶກຟອສຊິລ: 1 ໃນ The Paleobiology Database3
ການຄົ້ນພົບ: 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
ຍັງຖົກຖຽງກັນຢູ່: 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

ຂໍ້ມູນມາຈາກໃສ

Protognathosaurus (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Protognathosaurus in The Paleobiology Database (CC BY 4.0): ອາຍຸ, ສະຖານທີ່, ຊັ້ນຫີນ, ການຈັດໝວດໝູ່.

ທຸກຂໍ້ມູນໃນໜ້ານີ້ມີຕົວເລກທີ່ຊີ້ໄປຫາແຫຼ່ງອ້າງອີງ. ຖ້າພວກເຮົາຜິດພາດ, ຂໍໂທດເດີ, ພວກເຮົາເປັນແຟນໄດໂນ ບໍ່ແມ່ນວາລະສານວິທະຍາສາດ. ບອກພວກເຮົາທີ່ [email protected] ແລ້ວພວກເຮົາຈະແກ້ໄຂ.

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