Defrancia irregularis

Defrancia irregularis

via iDigBio · CC BY · 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
DefranciaPBDB
Diet
photosymbiotic, microcarnivorePBDB, for Faviidae
Life habit
low-level epifaunalPBDB, for Faviidae
Motility
stationaryPBDB, for Faviidae
Vision
blindPBDB, for Anthozoa
Environment
marinePBDB, for Scleractinia

Time the record covers

At least 6.8 million years on record.

The record covers at least 27.3 Mya to 20.45 Mya. No occurrence read is dated outside 33.9 Mya to 5.333 Mya.

Eocene — about 0 of 6 occurrencesOligocene — about 1 of 6 occurrencesOligoceneMiocene — about 5 of 6 occurrencesMiocenePliocene — about 0 of 6 occurrences34–33 Mya — about 0.1 occurrences33–32 Mya — about 0.1 occurrences32–32 Mya — about 0.1 occurrences32–31 Mya — about 0.1 occurrences31–30 Mya — about 0.1 occurrences30–29 Mya — about 0.1 occurrences29–28 Mya — about 0.1 occurrences28–27 Mya — about 0.0 occurrences24–23 Mya — about 0.2 occurrences23–22 Mya — about 0.5 occurrences22–21 Mya — about 0.5 occurrences21–20 Mya — about 0.6 occurrences20–19 Mya — about 0.6 occurrences19–18 Mya — about 0.6 occurrences18–17 Mya — about 0.6 occurrences17–16 Mya — about 0.4 occurrences16–15 Mya — about 0.1 occurrences15–14 Mya — about 0.1 occurrences14–13 Mya — about 0.1 occurrences13–12 Mya — about 0.1 occurrences12–11 Mya — about 0.1 occurrences11–9.7 Mya — about 0.1 occurrences9.7–8.7 Mya — about 0.1 occurrences8.7–7.7 Mya — about 0.1 occurrences7.7–6.7 Mya — about 0.1 occurrences6.7–5.8 Mya — about 0.1 occurrences5.8–4.8 Mya — about 0.0 occurrences27.3 Mya20.45 Mya34.5 Mya4.8 Mya

6 occurrences of Defrancia irregularis on record, most of them in the Miocene. 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

6 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

3 formations

Um ad Dahiy — 29.75°N, 18.13°EMaradah — 29.67°N, 18.75°ETermofourà — 45.07°N, 7.82°E

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The named rock units Defrancia irregularis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Defrancia irregularis and its relatives

Miocene

Where Defrancia irregularis and its relatives were recorded in the Miocene.

Found in the same rock

268 taxa

The Paleobiology Database records 6 sites for Defrancia irregularis, 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

3 references

Each of the 6 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 Defrancia irregularis

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Defrancia irregularis was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

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

Keep going

What may have been alongside itDefrancia through timeFormations of the MioceneThe world it lived on

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