Arbacia lixula

Arbacia lixula, the black sea urchin, is a species of sea urchin from Europe.

Arbacia lixula

Frédéric Ducarme · CC BY-SA 3.0 · via Wikipedia/Commons. 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 4.5 million years on record.

The one occurrence read is dated to somewhere between 137.05 Mya and 132.6 Mya, which is a dating window rather than a span.

Early Cretaceous — about 1 of 1 occurrenceEarly Cretaceous137–137 Mya — about 0.0 occurrences137–137 Mya — about 0.0 occurrences137–137 Mya — about 0.0 occurrences137–136 Mya — about 0.0 occurrences136–136 Mya — about 0.0 occurrences136–136 Mya — about 0.0 occurrences136–136 Mya — about 0.0 occurrences136–136 Mya — about 0.0 occurrences136–136 Mya — about 0.0 occurrences136–135 Mya — about 0.0 occurrences135–135 Mya — about 0.0 occurrences135–135 Mya — about 0.0 occurrences135–135 Mya — about 0.0 occurrences135–135 Mya — about 0.0 occurrences135–134 Mya — about 0.0 occurrences134–134 Mya — about 0.0 occurrences134–134 Mya — about 0.0 occurrences134–134 Mya — about 0.0 occurrences134–134 Mya — about 0.0 occurrences134–134 Mya — about 0.0 occurrences134–133 Mya — about 0.0 occurrences133–133 Mya — about 0.0 occurrences133–133 Mya — about 0.0 occurrences133–133 Mya — about 0.0 occurrences133–133 Mya — about 0.0 occurrences133–132 Mya — about 0.0 occurrences137.6 Mya132.1 Mya

1 occurrence of Arbacia lixula on record, most of them in the Early Cretaceous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

1 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 lixula and its relatives

Early Cretaceous

Where Arbacia lixula and its relatives were recorded in the Early Cretaceous.

Found in the same rock

76 taxa

The Paleobiology Database records 1 site for Arbacia lixula, 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 1 occurrence 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 lixula

Credit
Frédéric Ducarme
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Arbacia lixula 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.

The description on this site

Licence
CC BY-SA 4.0

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 Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Linnaeus 1758)