Portlandemys
No picture of Portlandemys was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Portlandemys, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PlesiochelyidaePBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Diapsida
Time the record covers
At least 4.1 million years on record.
The record covers at least 149.2 Mya to 145.06 Mya. No occurrence read is dated outside 152.21 Mya to 143.1 Mya.
4 occurrences of Portlandemys on record, most of them in the Late 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
4 occurrences- Late Jurassic100%
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
2 formations
- Reuchenette Formation2
- Portland Stone Formation · Portland Group1
Loading coastlines…
The named rock units Portlandemys 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.
Portlandemys and its relatives
Late JurassicWhere Portlandemys and its relatives were recorded in the Late Jurassic.
Found in the same rock
8 taxa- Colymbosaurus trochanterius1 site
- Crocodylia1 site
- Cryptoclidus richardsoni1 site
- Ornithopsis1 site
- Plesiochelys planiceps1 site
- Plesiosauria1 site
- Pleurosternon bullockii1 site
- Sauropoda1 site
The Paleobiology Database records 4 sites for Portlandemys, 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
3 references- Portlandemys gracilis n. sp., a new coastal marine turtle form the Late Jurassic of Porrentuy (Switzerland) and a reconsideration of plesiochelyid anatomy2
- Reptilia from the Portland Stone (Upper Jurassic) of England: a preliminary survey of the material and the literature1
- A taxonomic revision of the Jurassic turtles Portlandemys and Plesiochelys1
Each of the 4 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
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Portlandemys mcdowelli · NHMUK:PAL:PV R 2914
No picture of Portlandemys was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Portlandemys, or no answer at all. This entry cannot say which.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPlesiochelyidae through timeFormations of the Late JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Gaffney 1975