Arbacia incisa

Arbacia incisa

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
ArbaciaPBDB
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 5.4 million years on record.

Every occurrence read is dated to somewhere between 5.333 Mya and 11.7 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Miocene — about 0 of 3 occurrencesPliocene — about 1 of 3 occurrencesPliocenePleistocene — about 2 of 3 occurrencesPleistoceneHolocene — about 0 of 3 occurrences5.4–5.3 Mya — about 0.0 occurrences5.3–5.1 Mya — about 0.1 occurrences5.1–4.9 Mya — about 0.1 occurrences4.9–4.7 Mya — about 0.1 occurrences4.7–4.5 Mya — about 0.1 occurrences4.5–4.3 Mya — about 0.1 occurrences4.3–4.1 Mya — about 0.1 occurrences4.1–3.9 Mya — about 0.1 occurrences3.9–3.7 Mya — about 0.1 occurrences3.7–3.5 Mya — about 0.1 occurrences3.5–3.3 Mya — about 0.1 occurrences3.3–3.1 Mya — about 0.1 occurrences3.1–2.9 Mya — about 0.1 occurrences2.9–2.7 Mya — about 0.1 occurrences2.7–2.5 Mya — about 0.1 occurrences2.5–2.3 Mya — about 0.2 occurrences2.3–2.1 Mya — about 0.2 occurrences2.1–1.9 Mya — about 0.2 occurrences1.9–1.8 Mya — about 0.2 occurrences1.8–1.6 Mya — about 0.2 occurrences1.6–1.4 Mya — about 0.2 occurrences1.4–1.2 Mya — about 0.2 occurrences1.2–972 ka Mya — about 0.2 occurrences972 ka–778 ka Mya — about 0.2 occurrences778 ka–583 ka Mya — about 0.2 occurrences583 ka–389 ka Mya — about 0.2 occurrences389 ka–194 ka Mya — about 0.2 occurrences194 ka–0 Mya — about 0.1 occurrences5.8 Mya0 Mya

3 occurrences of Arbacia incisa 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

3 occurrences

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.

Arbacia incisa and its relatives

Pleistocene

Where Arbacia incisa and its relatives were recorded in the Pleistocene.

Found in the same rock

40 taxa

The Paleobiology Database records 3 sites for Arbacia incisa, 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 reference

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 the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Arbacia incisa

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 was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itArbacia through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Agassiz 1863)