Rhizopsammia arnoldi

via iDigBio · 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
- RhizopsammiaPBDB
- Diet
- microcarnivore, photosymbioticPBDB, for Scleractinia
- Life habit
- intermediate-level epifaunal, colonial, clonalPBDB, for Scleractinia
- Motility
- stationary, attachedPBDB, for Scleractinia
- Vision
- blindPBDB, for Anthozoa
- Environment
- marinePBDB, for Scleractinia
Time the record covers
At most 2.8 million years on record.
Every occurrence read is dated to somewhere between 5.333 Mya and 2.58 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Rhizopsammia arnoldi on record, most of them in the Pliocene. 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
3 occurrences- Pliocene100%
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
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The named rock units Rhizopsammia arnoldi has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Rhizopsammia arnoldi and its relatives
PlioceneWhere Rhizopsammia arnoldi and its relatives were recorded in the Pliocene.
Found in the same rock
32 taxa- Astrangia coalingensis3 sites
- Anadara trilineata1 site
- Argopecten circularis impostor1 site
- Boreotrophon multicostatus1 site
- Caesia californiana1 site
- Califostoma turris1 site
- Callianax pedroana1 site
- Calliostoma kerri1 site
- Calyptraea filosa1 site
- Camelidae1 site
- Chama arcana1 site
- Chlamys egregius1 site
- Concavus concavus1 site
- Dallocardia quadragenarium1 site
- Dendostrea vespertina1 site
- Dendraster arnoldi1 site
- Diodora unica1 site
- Eupleura perangulata1 site
- Merriamaster perrini1 site
- Modiolus carpenteri1 site
- Natica recluziana1 site
- Oppenheimopecten coalingaensis1 site
- Panopea generosa1 site
- Pecten etchegoini nutteri1 site
The Paleobiology Database records 3 sites for Rhizopsammia arnoldi, 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 3 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 Rhizopsammia arnoldi
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Rhizopsammia arnoldi 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 itRhizopsammia through timeFormations of the PlioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Durham 1941