Arachnastraea

Arachnastraea

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
YatsengiidaePBDB
Diet
suspension feederPBDB, for Rugosa
Life habit
epifaunalPBDB, for Rugosa
Motility
stationary, attachedPBDB, for Rugosa
Vision
blindPBDB, for Anthozoa
Environment
marinePBDB, for Rugosa

Time the record covers

At most 8.2 million years on record.

Every occurrence read is dated to somewhere between 315.2 Mya and 307 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Carboniferous — about 2 of 2 occurrencesCarboniferous315–315 Mya — about 0.0 occurrences315–315 Mya — about 0.1 occurrences315–314 Mya — about 0.1 occurrences314–314 Mya — about 0.1 occurrences314–314 Mya — about 0.1 occurrences314–314 Mya — about 0.1 occurrences314–313 Mya — about 0.1 occurrences313–313 Mya — about 0.1 occurrences313–313 Mya — about 0.1 occurrences313–312 Mya — about 0.1 occurrences312–312 Mya — about 0.1 occurrences312–312 Mya — about 0.1 occurrences312–311 Mya — about 0.1 occurrences311–311 Mya — about 0.1 occurrences311–311 Mya — about 0.1 occurrences311–310 Mya — about 0.1 occurrences310–310 Mya — about 0.1 occurrences310–310 Mya — about 0.1 occurrences310–310 Mya — about 0.1 occurrences310–309 Mya — about 0.1 occurrences309–309 Mya — about 0.1 occurrences309–309 Mya — about 0.1 occurrences309–308 Mya — about 0.1 occurrences308–308 Mya — about 0.1 occurrences308–308 Mya — about 0.1 occurrences308–307 Mya — about 0.1 occurrences307–307 Mya — about 0.1 occurrences307–307 Mya — about 0.0 occurrences315.7 Mya306.5 Mya

2 occurrences of Arachnastraea on record, most of them in the Carboniferous. 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

2 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

1 formation

Geumcheon — 36.99°N, 128.38°E

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The named rock units Arachnastraea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Arachnastraea and its relatives

Carboniferous

Where Arachnastraea and its relatives were recorded in the Carboniferous.

Found in the same rock

7 taxa

The Paleobiology Database records 2 sites for Arachnastraea, 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

2 references

Each of the 2 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 Arachnastraea

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 Arachnastraea 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 itYatsengiidae through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Yabe and Hayasaka 1916