Coronula diadema
Coronula diadema is a species of whale barnacle that lives on the skin of humpback whales and certain other species of whale. This species was first described by Carl Linnaeus in the 1767 12th edition of his Systema Naturae.

Aleria Jensen, NOAA/NMFS/AKFSC · 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
- CoronulaPBDB
- Diet
- suspension feederPBDB, for Cirripedia
- Life habit
- epifaunalPBDB, for Cirripedia
- Motility
- stationary, attached, epibiontPBDB, for Cirripedia
- Vision
- limitedPBDB, for Cirripedia
Time the record covers
At most 763 thousand years on record.
Every occurrence read is dated to somewhere between 774 ka and 11.7 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Coronula diadema on record, most of them in the Pleistocene. 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
5 occurrences- Pleistocene100%
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
Loading coastlines…
The named rock units Coronula diadema 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.
Coronula diadema and its relatives
PleistoceneWhere Coronula diadema and its relatives were recorded in the Pleistocene.
Found in the same rock
531 taxa- Acteocina harpa2 sites
- Actonia compacta2 sites
- Amiantis callosa2 sites
- Caecum californicum2 sites
- Caesia fossatus2 sites
- Callianax biplicata2 sites
- Chione californiensis2 sites
- Crepidula onyx2 sites
- Crucibulum spinosum2 sites
- Dentalium neohexagonum2 sites
- Donax (Donax) gouldii2 sites
- Fissurella volcano2 sites
- Glossaulax reclusiana2 sites
- Halistylus pupoideus2 sites
- Hipponix tumens2 sites
- Leptopecten latiauratus2 sites
- Littorina (Littorina) scutulata2 sites
- Megastraea undosa2 sites
- Nucula (Lamellinucula) exigua2 sites
- Parviturbo acuticostatus2 sites
- Rexithaerus secta2 sites
- Rissoina nereina2 sites
- Saxidomus nuttalli2 sites
- Seila montereyensis2 sites
The Paleobiology Database records 5 sites for Coronula diadema, 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- Isotopes from fossil coronulid barnacle shells record evidence of migration in multiple Pleistocene whale populations2
- New whale barnacle records from eastern North America (Early Pleistocene of the Carolinas, USA, and Late Pleistocene or Early Holocene of Montreal, Canada)1
- Ressources complémentaires et mobilité dans le Magdalénien cantabrique. Nouvelles données sur les mammifères marins, les crustacés, les mollusques et les roches organogènes de la Grotte de Las Caldas (Asturies, Espagne)1
- Late Pleistocene invertebrates of the Newport Bay area, California1
Each of the 5 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Coronula diadema
- Source
- Wikipedia/Commons
- Credit
- Aleria Jensen, NOAA/NMFS/AKFSC
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Coronula diadema 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 itCoronula through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Linnaeus 1767)