Didymotis

Didymotis

Cooper, Roger · CC0 · via GBIF. 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
PosidoniidaePBDB
Diet
suspension feederPBDB, for Ostreida
Life habit
epifaunalPBDB, for Ostreida
Motility
stationaryPBDB, for Posidoniidae
Vision
blindPBDB, for Bivalvia
Environment
marine,brackishPBDB, for Ostreida

Time the record covers

At least 23 million years on record.

The record covers at least 113.2 Mya to 89.8 Mya. No occurrence read is dated outside 121.4 Mya to 85.7 Mya.

Early Cretaceous — about 1 of 37 occurrencesEarly CretaceousLate Cretaceous — about 36 of 37 occurrencesLate Cretaceous122–121 Mya — about 0.1 occurrences121–120 Mya — about 0.2 occurrences120–118 Mya — about 0.2 occurrences118–117 Mya — about 0.2 occurrences117–116 Mya — about 0.2 occurrences116–115 Mya — about 0.2 occurrences115–113 Mya — about 0.2 occurrences113–112 Mya — about 0.0 occurrences95–94 Mya — about 2 occurrences94–92 Mya — about 8 occurrences92–91 Mya — about 8 occurrences91–90 Mya — about 8 occurrences90–89 Mya — about 3 occurrences89–87 Mya — about 3 occurrences87–86 Mya — about 3 occurrences86–85 Mya — about 1 occurrence113.2 Mya89.8 Mya122.1 Mya85 Mya

37 occurrences of Didymotis 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

37 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

5 formations

Cotinguiba — 10.76°S, 37.07°WCotinguiba — 10.82°S, 37.04°WCotinguiba — 10.85°S, 37.17°WCotinguiba — 10.86°S, 37.15°WLa Luna — 9.10°N, 70.43°WAshizawa — 37.67°N, 141.00°EFurushiroyama — 33.22°N, 132.57°ENkalagu Shale — 6.50°N, 7.50°E

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The named rock units Didymotis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 16 occurrences have no formation on record, which is common for older literature.

Didymotis and its relatives

Late Cretaceous

Where Didymotis and its relatives were recorded in the Late Cretaceous.

Found in the same rock

89 taxa

The Paleobiology Database records 35 sites for Didymotis, 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

8 references

Each of the 37 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

Picture of Didymotis

Source
GBIF
Credit
Cooper, Roger
Licence
CC0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPosidoniidae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gerhardt 1897