Arthraster

No picture of Arthraster 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 Arthraster, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
ChaetasteridaePBDB
Diet
carnivorePBDB, for Asteroidea
Life habit
epifaunalPBDB
Motility
actively mobilePBDB
Vision
limitedPBDB, for Asteroidea
Environment
marinePBDB

Time the record covers

At least 79 million years on record.

The record covers at least 165.3 Mya to 85.7 Mya. No occurrence read is dated outside 168.2 Mya to 83.6 Mya.

Middle Jurassic — about 1 of 11 occurrencesMiddle JurassicLate Jurassic — about 0 of 11 occurrencesEarly Cretaceous — about 0 of 11 occurrencesLate Cretaceous — about 10 of 11 occurrencesLate Cretaceous170–167 Mya — about 0.4 occurrences167–164 Mya — about 0.6 occurrences102–100 Mya — about 0.5 occurrences100–97 Mya — about 1 occurrence97–94 Mya — about 1 occurrence94–91 Mya — about 1 occurrence91–88 Mya — about 2 occurrences88–85 Mya — about 2 occurrences85–82 Mya — about 1 occurrence165.3 Mya85.7 Mya170 Mya82 Mya

11 occurrences of Arthraster on record, most of them in the Late Cretaceous. 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

2 formations

Bilá — 49.98°N, 15.60°EPierre Blanche de Langrune — 49.30°N, 0.35°W

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The named rock units Arthraster has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.

Arthraster and its relatives

Late Cretaceous

Where Arthraster and its relatives were recorded in the Late Cretaceous.

Found in the same rock

144 taxa

The Paleobiology Database records 11 sites for Arthraster, 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

3 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 content0

No picture of Arthraster 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 Arthraster, or no answer at all. This entry cannot say which.

No 3D scan of Arthraster 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 itChaetasteridae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Forbes 1848