Pilularia

Pilularia or pillworts is a genus of unusual ferns of family Marsileaceae distributed in North Temperate regions, Ethiopian mountains, and the southern hemisphere in Australia, New Zealand, and western South America.

A picture published with the record for Pilularia. What it shows has not been checked.

Uncredited · 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
PlantaePBDB

Time the record covers

At least 56 million years on record.

The record covers at least 93.9 Mya to 37.71 Mya. No occurrence read is dated outside 100.5 Mya to 23.04 Mya.

Early Cretaceous — about 0 of 2 occurrencesLate Cretaceous — about 1 of 2 occurrencesLate CretaceousPaleocene — about 0 of 2 occurrencesEocene — about 0 of 2 occurrencesEoceneOligocene — about 1 of 2 occurrencesOligoceneMiocene — about 0 of 2 occurrences102–99 Mya — about 0.2 occurrences99–97 Mya — about 0.4 occurrences97–94 Mya — about 0.4 occurrences94–91 Mya — about 0.0 occurrences40–38 Mya — about 0.0 occurrences38–35 Mya — about 0.2 occurrences35–32 Mya — about 0.2 occurrences32–30 Mya — about 0.2 occurrences30–27 Mya — about 0.2 occurrences27–24 Mya — about 0.2 occurrences24–21 Mya — about 0.1 occurrences93.9 Mya37.71 Mya102 Mya21 Mya

2 occurrences of Pilularia on record, most of them in the Late Cretaceous. 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

2 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

Dakota — 42.50°N, 96.40°WLoreto — 53.13°S, 70.97°W

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

Pilularia and its relatives

Late Cretaceous

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

Found in the same rock

11 taxa

The Paleobiology Database records 1 site for Pilularia, and this reads all of them. The number is how many of those sites it was catalogued from too.

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 2 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 content1

Picture of Pilularia

Credit
nobody named on the record
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Pilularia 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 itPlantae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Linnaeus 1753