Placochelys
Placochelys is an extinct genus of placodont reptiles erected by Otto Jaekel in 1902.

FunkMonk · CC BY-SA 3.0 · via Wikipedia/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
- PlacochelyidaPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- marinePBDB, for Sauropterygia
Time the record covers
At least 143 million years on record.
The record covers at least 227.3 Mya to 83.6 Mya. No occurrence read is dated outside 237 Mya to 72.2 Mya.
5 occurrences of Placochelys on record, most of them in the Late Triassic. 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
5 occurrencesThese 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
4 formations
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The named rock units Placochelys has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Placochelys and its relatives
Late TriassicWhere Placochelys and its relatives were recorded in the Late Triassic.
Found in the same rock
11 taxa- Acrodus1 site
- Acrodus lateralis1 site
- Birgeria1 site
- Birgeria acuminata1 site
- Leptonectes1 site
- Lissodus minimus1 site
- Nemacanthus monilifer1 site
- Polyacrodus cloacinus1 site
- Psephoderma alpinum1 site
- Sargodon1 site
- Sargodon tomicus1 site
The Paleobiology Database records 5 sites for Placochelys, and this reads all of them. The number is how many of those sites it was catalogued from too.
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
5 references- The cranial anatomy of Placochelys placodonta Jaekel, 1902, and a review of the Cyamodontoidea (Reptilia, Placodonta)1
- Denti di rettili placodonti nelle collezioni del Museo Civico di Storia Naturale di Milano1
- Ein großer Ichthyosaurier aus den Kössener Schichten der Nordalpen1
- Resti fossili di rettili nel Raibliano delle Alpi Carniche1
- Ein Placodontier-Zahn aus dem Hauptdolomit der niederösterreichischen Kalkalpen. (A tooth of Placodontidae from the Hauptdolomit in the niederösterreichic Kalkalpes)1
Each of the 5 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 Placochelys
- Source
- Wikipedia/Commons
- Credit
- FunkMonk
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Placochelys 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
- Source
- Wikipedia, “Placochelys”
- 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 itPlacochelyida through timeFormations of the Late TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Jaekel 1902