Chelosphargis advena

Chelosphargis is an extinct genus of sea turtle from Upper Cretaceous of Alabama. Only one species has been described, Chelosphargis advena.

Chelosphargis advena

Oliver Perry Hay (1846 - 1930) · Public Domain · 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
ChelosphargisPBDB
Diet
omnivorePBDB, for Cryptodira
Life habit
aquaticPBDB, for Cryptodira
Motility
actively mobilePBDB, for Osteichthyes
Environment
marinePBDB, for Chelonioidea

Time the record covers

At most 14 million years on record.

Every occurrence read is dated to somewhere between 85.7 Mya and 72.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Cretaceous — about 4 of 4 occurrencesLate Cretaceous86–85 Mya — about 0.3 occurrences85–85 Mya — about 0.3 occurrences85–84 Mya — about 0.3 occurrences84–84 Mya — about 0.3 occurrences84–83 Mya — about 0.2 occurrences83–83 Mya — about 0.1 occurrences83–82 Mya — about 0.1 occurrences82–82 Mya — about 0.1 occurrences82–81 Mya — about 0.1 occurrences81–81 Mya — about 0.1 occurrences81–80 Mya — about 0.1 occurrences80–80 Mya — about 0.1 occurrences80–79 Mya — about 0.1 occurrences79–79 Mya — about 0.1 occurrences79–78 Mya — about 0.1 occurrences78–78 Mya — about 0.1 occurrences78–78 Mya — about 0.1 occurrences78–77 Mya — about 0.1 occurrences77–77 Mya — about 0.1 occurrences77–76 Mya — about 0.1 occurrences76–76 Mya — about 0.1 occurrences76–75 Mya — about 0.1 occurrences75–75 Mya — about 0.1 occurrences75–74 Mya — about 0.1 occurrences74–74 Mya — about 0.1 occurrences74–73 Mya — about 0.1 occurrences73–73 Mya — about 0.1 occurrences73–72 Mya — about 0.1 occurrences86.2 Mya71.7 Mya

4 occurrences of Chelosphargis advena 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

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.

Found in

2 formations

Mooreville Chalk — 32.96°N, 88.13°WNiobrara — 38.90°N, 101.13°W

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The named rock units Chelosphargis advena has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Chelosphargis advena and its relatives

Late Cretaceous

Where Chelosphargis advena and its relatives were recorded in the Late Cretaceous.

Found in the same rock

31 taxa

The Paleobiology Database records 4 sites for Chelosphargis advena, 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 Chelosphargis advena

Credit
Oliver Perry Hay (1846 - 1930)
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Chelosphargis advena 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 itChelosphargis through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Hay 1908)