Halimeda cylindracea
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
- HalimedaPBDB
- Diet
- "photoautotroph"PBDB, for Halimedaceae
- Life habit
- epifaunalPBDB, for Halimedaceae
- Motility
- stationaryPBDB, for Halimedaceae
- Environment
- hypersaline,marine,brackishPBDB, for Halimedaceae
Time the record covers
At least 24 million years on record.
The record covers at least 66 Mya to 41.03 Mya. No occurrence read is dated outside 72.2 Mya to 33.9 Mya.
4 occurrences of Halimeda cylindracea on record, most of them in the Eocene. 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- Late Cretaceous25%
- Eocene75%
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
- Lameta Formation1
- Prang Formation · Sylhet Limestone Group1
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The named rock units Halimeda cylindracea 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.
Halimeda cylindracea and its relatives
EoceneWhere Halimeda cylindracea and its relatives were recorded in the Eocene.
Found in the same rock
22 taxa- Nummulites3 sites
- Acicularia2 sites
- Alveolina2 sites
- Discocyclina2 sites
- Halimeda fragilis2 sites
- Halimeda tuna2 sites
- Jania occidentalis2 sites
- Lithoporella melobesioides2 sites
- Lockhartia2 sites
- Ovulites arabica2 sites
- Ovulites margaritula2 sites
- Ovulites pyriformis2 sites
- Sporolithon2 sites
- Textularia2 sites
- Borelis1 site
- Corallina kachchhensis1 site
- Corallina matansa1 site
- Daviesina1 site
- Lithothamnion ramosissimum1 site
- Operculina1 site
- Orbitolites1 site
- Rotalia1 site
The Paleobiology Database records 3 sites for Halimeda cylindracea, and this reads all of them. The number is how many of those sites it was catalogued from too.
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- Calcareous algal-rich carbonate sediments from Assam shelf, N-E India: an overview of the palaeoenvironmental implications2
- Record of calcareous algae from the Lameta Formation: a new insight for possible sea incursion during the Maastrichtian time1
- Palaeoecological implications of Corallinacean red algae and Halimedacean green algae from the Prang Formation of south Shillong Plateau, Meghalaya1
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. 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 Halimeda cylindracea
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Halimeda cylindracea 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 itHalimeda through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Decaisne 1842