Euposaurus

Euposaurus is an extinct genus of lepidosaur from the late Jurassic Cerin Lagerstätte in the Auvergne-Rhône-Alpes region, France. It was originally considered a member or the family Euposauridae. However, it was reclassified as a lepidosaur incertae sedis. Only one species is currently accepted : E. thiollierei.

Euposaurus

Claude Jourdan · CC BY 4.0 · 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
LepidosauriaPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At most 3.1 million years on record.

Every occurrence read is dated to somewhere between 152.21 Mya and 149.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Jurassic — about 4 of 4 occurrencesLate Jurassic152–152 Mya — about 0.0 occurrences152–152 Mya — about 0.2 occurrences152–152 Mya — about 0.2 occurrences152–152 Mya — about 0.2 occurrences152–152 Mya — about 0.2 occurrences152–152 Mya — about 0.2 occurrences152–151 Mya — about 0.2 occurrences151–151 Mya — about 0.2 occurrences151–151 Mya — about 0.2 occurrences151–151 Mya — about 0.2 occurrences151–151 Mya — about 0.2 occurrences151–151 Mya — about 0.2 occurrences151–151 Mya — about 0.2 occurrences151–150 Mya — about 0.2 occurrences150–150 Mya — about 0.2 occurrences150–150 Mya — about 0.2 occurrences150–150 Mya — about 0.2 occurrences150–150 Mya — about 0.2 occurrences150–150 Mya — about 0.2 occurrences150–150 Mya — about 0.2 occurrences150–150 Mya — about 0.2 occurrences150–149 Mya — about 0.2 occurrences149–149 Mya — about 0.2 occurrences149–149 Mya — about 0.0 occurrences152.71 Mya148.7 Mya

4 occurrences of Euposaurus 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

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.

Euposaurus and its relatives

Late Jurassic

Where Euposaurus and its relatives were recorded in the Late Jurassic.

Found in the same rock

26 taxa

The Paleobiology Database records 1 site for Euposaurus, 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

2 references

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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Euposaurus

Credit
Claude Jourdan
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Euposaurus was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itLepidosauria through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Jourdan 1862