Amphihelia alternans
No picture of Amphihelia alternans was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Amphihelia alternans, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- Madrepora (Amphihelia)PBDB
- Diet
- suspension feederPBDB, for Madrepora
- Life habit
- colonial, clonalPBDB, for Faviina
- Motility
- stationary, attachedPBDB, for Oculinidae
- Vision
- blindPBDB, for Anthozoa
- Environment
- marinePBDB, for Scleractinia
Time the record covers
At most 6.3 million years on record.
Every occurrence read is dated to somewhere between 11.63 Mya and 5.333 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Amphihelia alternans 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
2 occurrences- Miocene100%
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
1 formation
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The named rock units Amphihelia alternans has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Amphihelia alternans and its relatives
MioceneWhere Amphihelia alternans and its relatives were recorded in the Miocene.
Found in the same rock
38 taxa- Alveopora daedalea2 sites
- Alveopora polyacantha2 sites
- Cyphastrea gemmulifera2 sites
- Dictyaraea anomala2 sites
- Dictyaraea micrantha2 sites
- Placosmilia2 sites
- Porites amplectans2 sites
- Progyrosmilia vacua2 sites
- Acanthastrea echinata1 site
- Acropora duncani1 site
- Acropora fennemai1 site
- Actinastrea minutissima1 site
- Astrea curta1 site
- Astreopora rutteni1 site
- Cycloseris cyclolites1 site
- Cyphastrea crassa1 site
- Cyphastrea tubifera1 site
- Dipsastraea laxa1 site
- Echinopora crassatina1 site
- Favia macrocalyx1 site
- Favia pallida rotulosa1 site
- Fungia echinata neogenica1 site
- Goniopora affinis1 site
- Heliopora sparsipora1 site
The Paleobiology Database records 2 sites for Amphihelia alternans, 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
1 referenceEach of the 2 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 content0
No picture of Amphihelia alternans was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Amphihelia alternans, or no answer at all. This entry cannot say which.
No 3D scan of Amphihelia alternans 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMadrepora (Amphihelia) through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Gerth 1923