Psephochelys

Nkombo elingi koloba: “pebbly turtle”1

Alyaki: MbisiBareptile ya mbuTriasiki ya nsukaNa siansi, dinozore mpenza te

Psephochelys was a turtle-like marine reptile that lived in the Late Triassic period, about 233 to 227 million years ago. It had a shell on its back made of many small bony plates, but no shell on its belly, just loose bones. It swam in warm seas where China is today.1 2

Likambo ya kosepelisa: reptile oyo ya mbu azalaki kobeta mai ntango badinozore bazalaki kotambola na mabele. Bato nyonso babengaka bango badino, kasi bazalaki libota mosusu ya bareptile.

Azalaki na bomoi

mbula milio 234 kino 227 eleki4

Triasiki ya nsuka

Bafosile emonanaki na

Guizhou Province, China1 2

Mbangu ya likolo

pene na 11 km/h (7 mph)

Kobeta mai, kokanisa

Azalaki na bomoi ntango nini?

Triasiki

Jurasiki

Kretase

Mbula milio 252 eleki20114566, asteroide

Azalaki na mbangu boni?

Moto oyo azali kotambola pene na 5 km/h (3 mph)

Psephochelys pene na 11 km/h (7 mph)

Mwana na velo pene na 12 km/h (7 mph)

Mpunda oyo azali kopota mbangu pene na 65 km/h (40 mph)

Nkoi ya mbangu pene na 100 km/h (62 mph)

makambo ya kitoko

Makambo ya kosepelisa

Psephochelys is known from only one species, Psephochelys polyosteoderma, and the first fossil was a partial skeleton found in the Falong Formation in China.1

Unlike turtles, Psephochelys had no hard shell on its belly. Instead, it had rib-like bones and small bony plates that were loosely connected.1

A subadult specimen shows that the shell of Psephochelys grew by fusing small plates together, starting from the middle and edges, similar to how a turtle's shell develops.3

Psephochelys belonged to a group called placodonts, which were marine reptiles that looked like turtles but are not closely related to them.1

The name Psephochelys means 'pebbly turtle' because its shell was made of many small, pebble-like bony plates.1

Psephochelys lived during the Carnian age of the Late Triassic, between about 233 and 227 million years ago.2

Elilingi ya Psephochelys esalemi na AI — Elilingi esalemi na AI oyo ezali kolakisa ndenge Psephochelys akokaki kozala. Ordinatere esalaki yango na makambo oyo bato ya siansi bayebi. Ezali kaka kokanisa: nyama ya solo akokaki kozala ndenge mosusu, mpe moto moko te ayebi balangi na ye ya solo.

Mpo na bayebi ya badino

Nkombo ya siansi: Psephochelys
Nkombo epesamaki na: Li and Rieppel 20024
Lisanga: Bareptile ya mbu
Libota / klade: Placochelyidae4
Klasifikasio: Placodontia > Sauropterygia4
Mbula ya mabanga: mbula milio 234 kino 227 (Carnian)4
Milongo ya mabanga: Xiaowa4
Bikolo: Sina4
Bafosile oyo ekomami: 1 na The Paleobiology Database4
Ntango bamonaki yango: Psephochelys was named by Chinese paleontologist Chun Li and Swiss paleontologist Olivier Rieppel in 2002, based on a single partial skeleton found in Guizhou, China.1 2
Naino bazali kowelana: Scientists are still debating exactly how Psephochelys is related to other placodonts, and whether its shell grew in a way that hints at a common ancestor with turtles.3

Esika makambo euti

Psephochelys (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
First subadult specimen of Psephochelys polyosteoderma (Sauropterygia, Placodontia) implies turtle-like fusion pattern of the carapace (onlinelibrary.wiley.com)
Psephochelys in The Paleobiology Database (CC BY 4.0): mbula, bisika, milongo ya mabanga, klasifikasio.

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