Porella

Porella

Daniel J. Drew · CC0 · via Wikidata/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
BryocryptellidaePBDB
Diet
suspension feederPBDB, for Cheilostomata
Life habit
epifaunalPBDB, for Cheilostomata
Motility
stationary, attachedPBDB, for Cheilostomata
Vision
blindPBDB, for Gymnolaemata
Environment
marinePBDB, for Lophophorata

Time the record covers

At least 47 million years on record.

The record covers at least 48.07 Mya to 129 ka. No occurrence read is dated outside 56 Mya to 11.7 ka.

Paleocene — about 0 of 44 occurrencesEocene — about 6 of 44 occurrencesEoceneOligocene — about 16 of 44 occurrencesOligoceneMiocene — about 13 of 44 occurrencesMiocenePliocene — about 2 of 44 occurrencesPleistocene — about 7 of 44 occurrences57–55 Mya — about 0.1 occurrences55–53 Mya — about 0.2 occurrences53–51 Mya — about 0.2 occurrences51–50 Mya — about 0.2 occurrences50–48 Mya — about 0.2 occurrences38–36 Mya — about 2 occurrences36–34 Mya — about 2 occurrences34–32 Mya — about 3 occurrences32–30 Mya — about 3 occurrences30–29 Mya — about 3 occurrences29–27 Mya — about 3 occurrences27–25 Mya — about 3 occurrences25–23 Mya — about 3 occurrences23–21 Mya — about 0.4 occurrences21–19 Mya — about 1 occurrence19–17 Mya — about 2 occurrences17–15 Mya — about 3 occurrences15–13 Mya — about 3 occurrences13–11 Mya — about 2 occurrences11–9.5 Mya — about 0.8 occurrences9.5–7.6 Mya — about 0.8 occurrences7.6–5.7 Mya — about 0.5 occurrences5.7–3.8 Mya — about 0.6 occurrences3.8–1.9 Mya — about 1 occurrence1.9–0 Mya — about 7 occurrences48.07 Mya129 ka57 Mya0 Mya

44 occurrences of Porella on record, most of them in the Oligocene. The Paleobiology Database records this as a living group. 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

44 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

10 formations

Moodys Branch — 32.32°N, 90.16°WMarianna Limestone — 31.52°N, 87.33°WMarianna Limestone — 31.07°N, 87.10°WMarianna Limestone — 31.15°N, 87.15°WRed Bluff — 31.73°N, 88.20°WRed Bluff — 31.54°N, 87.52°WByram Marl — 31.69°N, 88.66°WByram Marl — 32.18°N, 90.25°WPalos Verdes Sand — 33.60°N, 117.88°WWataepoolan limestone — 37.93°S, 141.41°EGlenaulin clay — 37.93°S, 141.41°EMt Brown "E" Limestone — 43.02°S, 172.71°ENiebla Calcarenite — 37.35°N, 6.67°WSan Diego — 32.54°N, 117.11°W

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The named rock units Porella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 25 occurrences have no formation on record, which is common for older literature.

Porella and its relatives

Oligocene

Where Porella and its relatives were recorded in the Oligocene.

Found in the same rock

1,320 taxa

The Paleobiology Database records 31 sites for Porella, 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

14 references

Each of the 44 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. 2 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 Porella

Credit
Daniel J. Drew
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 itBryocryptellidae through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gray 1848