Flabellina
Flabellina is a genus of sea slugs, specifically aeolid nudibranchs. These animals are marine gastropod molluscs in the family Flabellinidae.

Bernard Picton · CC BY-SA 4.0 · 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.
Time the record covers
At least 198 million years on record.
The record covers at least 264.28 Mya to 66 Mya. No occurrence read is dated outside 266.9 Mya to 61.66 Mya.
4 occurrences of Flabellina on record, most of them in the Permian. 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- Permian25%
- Late Triassic25%
- Late Cretaceous25%
- Paleocene25%
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
- Moreno Formation · Great Valley Group1
- Cephalopod Limestone Formation1
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The named rock units Flabellina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Flabellina and its relatives
PermianWhere Flabellina and its relatives were recorded in the Permian.
Found in the same rock
313 taxa- Nodosaria3 sites
- Bulimina2 sites
- Cristellaria (Marginulina)2 sites
- Cristellaria rotulata2 sites
- Frondicularia2 sites
- Serpula2 sites
- "Hydatina" sp.1 site
- Adelopneustes boehmi1 site
- Adriana osiensis1 site
- Agathiceras suessi1 site
- Altudoceras hirsutum1 site
- Altudoceras zitteli1 site
- Ammodiscus1 site
- Amplexus salomonensis1 site
- Anellidia veridica1 site
- Anellina parvula1 site
- Annuliconcha acanthica1 site
- Anomalina1 site
- Anthozoa1 site
- Aphrocallistes1 site
- Apsendesia1 site
- Araucarioxylon1 site
- Arbusculana1 site
- Arca1 site
The Paleobiology Database records 4 sites for Flabellina, 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
4 references- Revision of Elasmosaurid Plesiosaurs1
- Sul Permiano di Sicilia (fossili del calcare con Fusulina di Palazzo Adriano non descritti dal Prof. G. Gemmellaro conservati nel mio privato gabinetto)1
- Kalken paa Saltholm1
- Die Brachiopoden, Lamellibranchiaten und Gastropoden der Trias von Timor II1
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. 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 Flabellina
- Source
- Wikipedia/Commons
- Credit
- Bernard Picton
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Flabellina 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
- Source
- Wikipedia, “Flabellina”
- 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 itFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. d'Orbigny 1839