Margaretta

Margaretta is a genus of bryozoans belonging to the family Margarettidae.

Margaretta

via iDigBio · CC0 · via iDigBio. 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
MargarettidaePBDB
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 36 million years on record.

The record covers at least 37.71 Mya to 774 ka. No occurrence read is dated outside 66 Mya to 0 Mya.

Late Cretaceous — about 0 of 61 occurrencesPaleocene — about 0 of 61 occurrencesPaleoceneEocene — about 11 of 61 occurrencesEoceneOligocene — about 12 of 61 occurrencesOligoceneMiocene — about 19 of 61 occurrencesMiocenePliocene — about 6 of 61 occurrencesPleistocene — about 13 of 61 occurrences67–65 Mya — about 0.0 occurrences65–63 Mya — about 0.1 occurrences63–61 Mya — about 0.1 occurrences61–58 Mya — about 0.1 occurrences58–56 Mya — about 0.1 occurrences56–54 Mya — about 0.1 occurrences54–52 Mya — about 0.1 occurrences52–49 Mya — about 0.1 occurrences49–47 Mya — about 0.1 occurrences47–45 Mya — about 0.1 occurrences45–43 Mya — about 0.1 occurrences43–40 Mya — about 2 occurrences40–38 Mya — about 5 occurrences38–36 Mya — about 2 occurrences36–34 Mya — about 1 occurrence34–31 Mya — about 4 occurrences31–29 Mya — about 4 occurrences29–27 Mya — about 3 occurrences27–25 Mya — about 0.7 occurrences25–22 Mya — about 1 occurrence22–20 Mya — about 3 occurrences20–18 Mya — about 4 occurrences18–16 Mya — about 3 occurrences16–13 Mya — about 3 occurrences13–11 Mya — about 3 occurrences11–9.0 Mya — about 1 occurrence9.0–6.7 Mya — about 0.9 occurrences6.7–4.5 Mya — about 2 occurrences4.5–2.2 Mya — about 5 occurrences2.2–0 Mya — about 12 occurrences37.71 Mya774 ka67 Mya0 Mya

61 occurrences of Margaretta on record, most of them in the Miocene. 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

61 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

20 formations

Crystal River Limestone — 29.65°N, 82.61°WCrystal River Limestone — 29.19°N, 82.14°WCrystal River Limestone — 29.29°N, 82.75°WCrystal River Limestone — 28.71°N, 82.57°WRed Bluff — 31.73°N, 88.20°WRed Bluff — 31.15°N, 87.15°WRed Bluff — 32.32°N, 90.89°WRed Bluff — 31.63°N, 88.31°WRed Bluff — 31.54°N, 87.52°WTimms Point Silt — 33.73°N, 118.28°WDry Creek Sands — 34.75°S, 138.68°EDry Creek Sands — 34.91°S, 138.56°EMoin — 9.99°N, 83.05°WWilliston Limestone — 29.77°N, 82.87°WWilliston Limestone — 29.29°N, 82.75°WByram Marl — 31.69°N, 88.66°WByram Marl — 32.18°N, 90.25°WMarianna Limestone — 31.15°N, 87.15°WMarianna Limestone — 31.53°N, 87.89°WKhari Nadi — 23.40°N, 68.80°ESiamaná — 12.05°N, 71.42°WAnchor — 34.04°N, 118.40°WCrystal River — 30.77°N, 85.23°WPachuta Marl — 31.14°N, 87.94°WBumpnose — 30.77°N, 85.23°WAl Bad — 28.17°N, 34.90°EKolymbia — 36.25°N, 28.17°ERhodes — 36.42°N, 28.20°EGatun — 9.36°N, 79.83°WAshawaq — 17.00°N, 53.00°EChaasra — 23.37°N, 68.82°E

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The named rock units Margaretta has been recovered from, largest first. Drawn where the rock is now, not where it formed. 18 occurrences have no formation on record, which is common for older literature.

Margaretta and its relatives

Miocene

Where Margaretta and its relatives were recorded in the Miocene.

Found in the same rock

728 taxa

The Paleobiology Database records 46 sites for Margaretta, 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

23 references

Each of the 61 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. 11 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 Margaretta

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Margaretta 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 itMargarettidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gray 1843