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Umfanekiso wekhathuni: Pachycostasaurus
Ikhadi ledayinaso No. 1341 kwe-2 027

Pachycostasaurus

Igama lithetha: “thick-ribbed lizard”1
Yayitya: InyamaIiplesiosauriiJurassic ephakathiNgokwenene ayisiyo dayinaso

Pachycostasaurus was a pliosaur, a kind of short-necked plesiosaur that lived in the sea. It had very thick, heavy ribs that made its body barrel-shaped, like a fat sausage. This marine reptile was not a fast swimmer, but it used its heavy bones to stay stable underwater.1

Inyani emnandi: esi sirhubuluzi saselwandle sasiqubha ngelixa iidayinaso zazihamba emhlabeni. Wonke umntu uzibiza ngokuba ziidayinaso, kodwa zazilisebe elahlukileyo lezirhubuluzi.
Yaphila
165 ukuya ku-162 izigidi zeminyaka eyadlulayo2
iJurassic ephakathi
Iifosili zifunyenwe:
Peterborough, England12
Ubude
3 m (9.8 ft)1
Esona santya siphezulu
malunga ne-28 km/h (17 mph)
Ukuqubha, uqikelelo

Yaphila nini?

iTriassic
iJurassic
iCretaceous
Izigidi ezingama-252 zeminyaka eyadlulayo20114566, i-asteroyidi

Yayinkulu kangakanani?

Yayinde kangakanani?

Pachycostasaurus malunga ne-3 m ubude (9.8 ft)Ibhayisikile yomntu omdala malunga ne-1.8 m (5.9 ft)Imoto malunga ne-4.5 m (15 ft)Indlovu, esona silwanyana sikhulu emhlabeni namhlanje malunga ne-6.5 m (21 ft)
inde njengezinja ezingama-3, impumlo ukuya emsileniinde njengeebhanana ezingama-17 zilandelelanaibinokuqubha ubude bechibi elikhulu lokuqubha (50 m) ngemizuzwana engama-6.4

Pachycostasaurus wayemkhulu kangakanani xa ethelekiswa NAWE?

Yimathematika nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwe naphi na.

Yayikhawuleza kangakanani?

izinto ezimnandi

Iinyani ezimnandi

1

Pachycostasaurus had ribs and belly bones that were so thick they looked like sausages. This condition is called pachyostosis, and it also happens in modern dugongs and manatees.1

2

Its flippers were small compared to its body, and its neck was short. This made it a slow swimmer, unlike many other pliosaurs.1

3

The only known fossil of Pachycostasaurus was found by Alan Dawn, an amateur geologist and museum volunteer, in a quarry in Peterborough, England.1

4

Its head was about 20% of its total body length, which is typical for pliosaurs of its time.1

5

Pachycostasaurus lived about 165 to 161 million years ago, during the Middle Jurassic period.2

6

The bones of its backbone had a large canal for the spinal cord, and some parts were not fully hardened, suggesting the animal might not have been fully grown when it died.1

Yenziwe yi-AIUmfanekiso owenziwe yi-AI: Pachycostasaurus
Umfanekiso owenziwe yi-AI obonisa indlela Pachycostasaurus esenokuba wayekhangeleka ngayo, wenziwe yikhompyutha ngokwento eyaziwa zizazinzulu. Kukuqikelela nje: esona silwanyana sinokuba sasikhangeleka ngenye indlela, kwaye akukho mntu waziyo imibala yaso yokwenyani.

Inyaniso ngeentsomi

Intsomi: Pachycostasaurus was a fast, powerful predator like other pliosaurs.

Inyaniso: Its heavy ribs, small flippers, and short neck show it was a slow swimmer that probably stayed near the seafloor, hunting soft prey.1

Kwiingcali zeedayinaso

Igama lenzululwazi
Pachycostasaurus
Inikwe igama ngu:
Cruickshank et al. 19962
Iqela
Iiplesiosauri
Usapho / iclade
Pliosauridae2
Ukuhlelwa
Plesiosauria > Pliosauridae > Sauropterygia2
Ubudala bamatye
165 ukuya ku-162 izigidi zeminyaka (Callovian)2
Izakhiwo zamatye
Oxford Clay2
Amazwe
iUnited Kingdom2
Iirekhodi zeefosili
1 kwi-Paleobiology Database2
Ukufunyanwa
The fossil was discovered by amateur geologist Alan Dawn in a quarry near Peterborough, England. Scientists Arthur Cruickshank, David Martill and Leslie Noè described and named it in 1996.1
Kusaxoxwa ngayo
Scientists are not sure whether Pachycostasaurus lived in freshwater rivers and estuaries and was washed into the sea, or if it lived in the deep ocean and drifted to shallow waters.1

Apho iinyani zivela khona

  1. Pachycostasaurus (en.wikipedia.org)
  2. Pachycostasaurus in The Paleobiology Database (CC BY 4.0): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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