Arbia aldrichi
No picture of Arbia aldrichi 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 Arbia aldrichi, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- ArbiaPBDB
- Diet
- grazerPBDB, for Arbaciidae
- Life habit
- epifaunalPBDB, for Arbaciidae
- Motility
- actively mobilePBDB, for Arbaciidae
- Vision
- limitedPBDB, for Echinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 33.9 Mya and 23.04 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Arbia aldrichi on record, most of them in the Oligocene. 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- Oligocene100%
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
- Byram Marl Formation · Vicksburg Group1
- Chickasawhay Formation1
- River Bend Formation1
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The named rock units Arbia aldrichi has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Arbia aldrichi and its relatives
OligoceneWhere Arbia aldrichi and its relatives were recorded in the Oligocene.
Found in the same rock
14 taxa- Agassizia (Anisaster) mossomi1 site
- Anomia ruffini1 site
- Balanus1 site
- Cardium1 site
- Crassatella (Crassatella) mississippiensis1 site
- Echinocyamus wilsoni1 site
- Gagaria mossomi1 site
- Mercenaria capax1 site
- Modiolus1 site
- Panopea1 site
- Pecten1 site
- Rebeccapecten trentensis1 site
- Striostrea gigantissima1 site
- Turritella tampae1 site
The Paleobiology Database records 2 sites for Arbia aldrichi, 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- Oligocene echinoids of North Carolina1
- Cenozoic echinoids of eastern United States1
- The Mesozoic and Cenozoic Echinodermata of the United States1
Each 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Arbia aldrichi 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 Arbia aldrichi, or no answer at all. This entry cannot say which.
No 3D scan of Arbia aldrichi 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 itArbia through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Clark and Twitchell 1915)