Anosteira

Anosteira is an extinct genus of carettochelyid turtle from the Eocene to the Oligocene of Asia and North America.

Anosteira

Gary Todd · 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
CarettochelyidaePBDB
Diet
herbivore, omnivorePBDB, for Carettochelyidae
Life habit
aquaticPBDB, for Carettochelyidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
freshwaterPBDB, for Carettochelyidae

Time the record covers

At least 45 million years on record.

The record covers at least 83.6 Mya to 37.71 Mya. No occurrence read is dated outside 93.9 Mya to 33.9 Mya.

Late Cretaceous — about 1 of 53 occurrencesLate CretaceousPaleocene — about 0 of 53 occurrencesEocene — about 52 of 53 occurrencesEoceneOligocene — about 0 of 53 occurrences95–93 Mya — about 0.1 occurrences93–91 Mya — about 0.2 occurrences91–89 Mya — about 0.2 occurrences89–87 Mya — about 0.2 occurrences87–85 Mya — about 0.2 occurrences85–83 Mya — about 0.1 occurrences58–56 Mya — about 0.1 occurrences56–54 Mya — about 0.5 occurrences54–51 Mya — about 0.5 occurrences51–49 Mya — about 4 occurrences49–47 Mya — about 4 occurrences47–45 Mya — about 7 occurrences45–43 Mya — about 10 occurrences43–41 Mya — about 10 occurrences41–39 Mya — about 11 occurrences39–37 Mya — about 4 occurrences37–35 Mya — about 1 occurrence35–33 Mya — about 0.5 occurrences83.6 Mya37.71 Mya95 Mya33 Mya

53 occurrences of Anosteira on record, most of them in the Eocene. 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

53 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

13 formations

Uinta — 40.06°N, 109.62°WUinta — 40.15°N, 109.62°WUinta — 40.08°N, 109.27°WUinta — 40.20°N, 110.44°WUinta — 40.15°N, 109.75°WUinta — 40.20°N, 109.90°WBridger — 42.37°N, 108.91°WBridger — 41.80°N, 110.70°WBridger — 41.20°N, 110.50°WBridger — 41.70°N, 109.00°WPondaung — 21.95°N, 94.53°EPondaung — 21.92°N, 94.53°EYouganwo — 21.70°N, 110.88°EWasatch — 42.37°N, 108.91°WUlan Shireh — 44.13°N, 103.56°ENiushan — 36.52°N, 118.54°EJijuntun — 41.84°N, 123.90°ELizhuan — 32.46°N, 114.05°EXinyu — 27.80°N, 114.92°EIrdin Manha — 43.33°N, 111.76°EWashakie — 41.65°N, 108.88°WBaynshire — 43.14°N, 107.52°E

Loading coastlines…

The named rock units Anosteira has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Anosteira and its relatives

Eocene

Where Anosteira and its relatives were recorded in the Eocene.

Found in the same rock

393 taxa

The Paleobiology Database records 53 sites for Anosteira, 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

21 references

Each of the 53 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. 9 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

Picture of Anosteira

Credit
Gary Todd
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Anosteira 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

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 itCarettochelyidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Leidy 1871