Kayentachelys

Kayentachelys is an extinct genus of turtle known only from the "silty facies" of the Lower Jurassic Kayenta Formation in northeastern Arizona on the lands of the Navajo Nation.

Kayentachelys

NobuTamura email:nobu.tamura@yahoo.com https://paleoexhibit.blogspot.com/ https://spinops.blogspot.com/ https://www.p… · CC BY-SA 3.0 · via Wikidata/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
MesochelydiaPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Diapsida

Time the record covers

At most 18 million years on record.

Every occurrence read is dated to somewhere between 201.4 Mya and 184.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Triassic — about 0 of 12 occurrencesEarly Jurassic — about 12 of 12 occurrencesEarly Jurassic202–201 Mya — about 0.0 occurrences201–201 Mya — about 0.1 occurrences201–200 Mya — about 0.1 occurrences200–199 Mya — about 0.2 occurrences199–199 Mya — about 0.5 occurrences199–198 Mya — about 0.5 occurrences198–198 Mya — about 0.5 occurrences198–197 Mya — about 0.5 occurrences197–196 Mya — about 0.5 occurrences196–196 Mya — about 0.5 occurrences196–195 Mya — about 0.5 occurrences195–195 Mya — about 0.5 occurrences195–194 Mya — about 0.5 occurrences194–193 Mya — about 0.5 occurrences193–193 Mya — about 0.5 occurrences193–192 Mya — about 0.4 occurrences192–192 Mya — about 0.4 occurrences192–191 Mya — about 0.4 occurrences191–190 Mya — about 0.4 occurrences190–190 Mya — about 0.4 occurrences190–189 Mya — about 0.4 occurrences189–189 Mya — about 0.4 occurrences189–188 Mya — about 0.4 occurrences188–187 Mya — about 0.4 occurrences187–187 Mya — about 0.4 occurrences187–186 Mya — about 0.4 occurrences186–186 Mya — about 0.4 occurrences186–185 Mya — about 0.4 occurrences185–184 Mya — about 0.4 occurrences184–184 Mya — about 0.1 occurrences201.9 Mya183.7 Mya

12 occurrences of Kayentachelys on record, most of them in the Early Jurassic. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

12 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in

1 formation

Kayenta — 35.75°N, 111.08°WKayenta — 37.00°N, 110.70°WKayenta — 35.74°N, 111.07°W

Loading coastlines…

The named rock units Kayentachelys has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Kayentachelys and its relatives

Early Jurassic

Where Kayentachelys and its relatives were recorded in the Early Jurassic.

Found in the same rock

31 taxa

The Paleobiology Database records 10 sites for Kayentachelys, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

3 references

Each of the 12 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Kayentachelys

Credit
NobuTamura email:nobu.tamura@yahoo.com https://paleoexhibit.blogspot.com/ https://spinops.blogspot.com/ https://www.p…
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Kayentachelys was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itMesochelydia through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gaffney et al. 1987