Crossea (Crosseola)

Crosseola concinna (Angas, 1868), a relative of Crossea (Crosseola) — not Crossea (Crosseola) itself

Not Crossea (Crosseola). This is Crosseola concinna (Angas, 1868), a relative — both are Conradiidae.

Thomas Mesaglio · CC BY 4.0 · via GBIF. 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
CrosseaPBDB
Diet
grazerPBDB, for Skeneidae
Life habit
epifaunalPBDB, for Skeneidae
Motility
actively mobilePBDB, for Skeneidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 32 million years on record.

The record covers at least 33.9 Mya to 1.63 Mya. No occurrence read is dated outside 37.71 Mya to 340 ka.

Eocene — about 1 of 11 occurrencesEoceneOligocene — about 0 of 11 occurrencesMiocene — about 8 of 11 occurrencesMiocenePliocene — about 0 of 11 occurrencesPleistocene — about 2 of 11 occurrences38–37 Mya — about 0.1 occurrences37–36 Mya — about 0.3 occurrences36–35 Mya — about 0.3 occurrences35–33 Mya — about 0.2 occurrences23–22 Mya — about 0.5 occurrences22–21 Mya — about 2 occurrences21–19 Mya — about 2 occurrences19–18 Mya — about 2 occurrences18–17 Mya — about 1 occurrence17–15 Mya — about 0.8 occurrences2.6–1.3 Mya — about 0.5 occurrences1.3–0 Mya — about 1 occurrence33.9 Mya1.63 Mya38.5 Mya0 Mya

11 occurrences of Crossea (Crosseola) on record, most of them in the Miocene. 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

11 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.

Found in

7 formations

Pakaurangi — 36.22°S, 174.28°ERifle Butts — 45.12°S, 170.93°ETainui Shell Bed — 39.95°S, 174.98°EMonte Leon Fm — 50.37°S, 69.05°WChenque — 48.30°S, 67.72°WJan Juc — 38.32°S, 144.32°EWerillup — 34.76°S, 116.72°E

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The named rock units Crossea (Crosseola) has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Crossea (Crosseola) and its relatives

Miocene

Where Crossea (Crosseola) and its relatives were recorded in the Miocene.

Found in the same rock

212 taxa

The Paleobiology Database records 2 sites for Crossea (Crosseola), 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

6 references

Each of the 11 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. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Crosseola concinna (Angas, 1868)

Source
GBIF
Credit
Thomas Mesaglio
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Crossea (Crosseola) 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 itCrossea through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Iredale 1924)