Planularia

Searched as Planularia cf. dorbignyi. The Paleobiology Database treats Planularia as the accepted name.

No picture of Planularia was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Planularia, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
NodosariidaePBDB
Diet
omnivorePBDB, for Foraminifera
Life habit
semi-infaunalPBDB, for Nodosariidae
Motility
stationaryPBDB, for Foraminifera

Time the record covers

At most 3.8 million years on record.

Every occurrence read is dated to somewhere between 174.7 Mya and 170.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Jurassic — about 0 of 4 occurrencesMiddle Jurassic — about 4 of 4 occurrencesMiddle Jurassic175–175 Mya — about 0.1 occurrences175–174 Mya — about 0.2 occurrences174–174 Mya — about 0.2 occurrences174–174 Mya — about 0.2 occurrences174–174 Mya — about 0.2 occurrences174–174 Mya — about 0.2 occurrences174–174 Mya — about 0.2 occurrences174–173 Mya — about 0.2 occurrences173–173 Mya — about 0.2 occurrences173–173 Mya — about 0.2 occurrences173–173 Mya — about 0.2 occurrences173–173 Mya — about 0.2 occurrences173–173 Mya — about 0.2 occurrences173–172 Mya — about 0.2 occurrences172–172 Mya — about 0.2 occurrences172–172 Mya — about 0.2 occurrences172–172 Mya — about 0.2 occurrences172–172 Mya — about 0.2 occurrences172–172 Mya — about 0.2 occurrences172–172 Mya — about 0.2 occurrences172–171 Mya — about 0.2 occurrences171–171 Mya — about 0.2 occurrences171–171 Mya — about 0.2 occurrences171–171 Mya — about 0.1 occurrences175.2 Mya170.4 Mya

4 occurrences of Planularia on record, most of them in the Middle Jurassic. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

1 formation

Opalinuston — 47.95°N, 7.82°E

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The named rock units Planularia has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Planularia and its relatives

Middle Jurassic

Where Planularia and its relatives were recorded in the Middle Jurassic.

Found in the same rock

1,102 taxa

The Paleobiology Database records 173 sites for Planularia, 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

1 reference

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 the Paleobiology Database's own record for the work.

Media and terms

Media content0

No picture of Planularia was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Planularia, or no answer at all. This entry cannot say which.

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 itNodosariidae through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Defrance 1826