Plesiosauria
No picture of Plesiosauria was found. iDigBio and Smithsonian Open Access were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Plesiosauria itself, so it was not used. Wikidata 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 Plesiosauria, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Also called
- plesiosaurPBDB
- Sits inside
- SauropterygiaPBDB
- Diet
- carnivorePBDB
- Life habit
- aquatic, depth=surfacePBDB
- Motility
- actively mobilePBDB
- Environment
- marinePBDB
Time the record covers
At least 148 million years on record.
The record covers at least 221 Mya to 72.2 Mya. No occurrence read is dated outside 227.5 Mya to 56 Mya.
1,166 occurrences of Plesiosauria on record, most of them in the Late Cretaceous. 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
1,166 occurrences- Late Triassic1%
- Early Jurassic9%
- Middle Jurassic8%
- Late Jurassic17%
- Early Cretaceous14%
- Late Cretaceous50%
- Paleoceneunder 1%
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
249 formations
- Kimmeridge Clay Formation · Ancholme Group85
- Oxford Clay Formation · Ancholme Group55
- Conway Formation · Eyre Group37
- López de Bertodano Formation24
- Niobrara Formation · Colorado Group21
- Allen Formation · Malargüe Group20
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The named rock units Plesiosauria has been recovered from, largest first. Drawn where the rock is now, not where it formed. 225 further formations hold fewer occurrences each and are not listed. 225 occurrences have no formation on record, which is common for older literature.
Plesiosauria and its relatives
Late CretaceousWhere Plesiosauria and its relatives were recorded in the Late Cretaceous.
Found in the same rock
1,291 taxa- Elasmosauridae44 sites
- Mosasauridae19 sites
- Theropoda19 sites
- Polycotylidae14 sites
- Teleostei14 sites
- Testudines14 sites
- Pliosauridae12 sites
- Cretalamna appendiculata11 sites
- Enchodus11 sites
- Hybodus11 sites
- Ichthyosauria11 sites
- Inoceramus11 sites
- Crocodylia9 sites
- Ostrea9 sites
- Pterosauria9 sites
- Astarte8 sites
- Cretoxyrhina mantelli8 sites
- Elasmosaurus8 sites
- Lepidotes8 sites
- Meristodonoides montanensis8 sites
- Myledaphus bipartitus8 sites
- Ornithocheiridae8 sites
- Plesiosaurus8 sites
- Squalicorax8 sites
The Paleobiology Database records 875 sites for Plesiosauria, and this reads 240 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
542 references- Lydekker, 188946
- The Mesozoic reptiles of Dorset. Part two33
- Late Cretaceous marine reptiles of New Zealand22
- Reptiles from the Senonian (U Cret) of Scania (S Sweden)20
- On the fossil Reptilia of New Zealand17
- A stratigraphic and taxonomic review of plesiosaurs from the old "Fort Benton Group" of central Kansas: a new assessment of old records15
- The end of the dinosaur era in Patagonia (NatGeo Project)13
- Turonian marine amniotes from the Bohemian Cretaceous Basin, Czech Republic13
- Report on British fossil reptiles12
- Terrestrial and Freshwater Turtles of Early Cretaceous Australia11
- Northernmost occurrences of plesiosaurs and turtles in the Upper Cretaceous of Eurasia10
- A giant pliosaurid skull from the Late Jurassic of England10
Each of the 1,166 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. 530 further references are not listed. 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
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Plesiosauria indet. · NHMUK:PAL:PV R 4205
No picture of Plesiosauria was found. iDigBio and Smithsonian Open Access were searched and had none.
Wikipedia has a picture filed under this name, but nothing tied it to Plesiosauria itself, so it was not used.
Wikidata 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 Plesiosauria, or no answer at all. This entry cannot say which.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itSauropterygia through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (de Blainville 1835)