Stenaster obtusus

Stenaster obtusus

via iDigBio · CC0 · 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
StenasterPBDB
Diet
suspension feeder, deposit feederPBDB, for Stenaster
Life habit
low-level epifaunalPBDB, for Ophiuroidea
Motility
actively mobilePBDB, for Stenaster
Vision
blindPBDB, for Ophiuroidea
Environment
marinePBDB, for Stenaster

Time the record covers

At least 32 million years on record.

The record covers at least 471.3 Mya to 438.6 Mya. No occurrence read is dated outside 477.1 Mya to 432.9 Mya.

Ordovician — about 4 of 5 occurrencesOrdovicianSilurian — about 1 of 5 occurrencesSilurian478–476 Mya — about 0.1 occurrences476–475 Mya — about 0.3 occurrences475–473 Mya — about 0.3 occurrences473–472 Mya — about 0.3 occurrences472–470 Mya — about 0.1 occurrences460–458 Mya — about 0.0 occurrences458–457 Mya — about 0.7 occurrences457–455 Mya — about 0.9 occurrences455–453 Mya — about 0.8 occurrences453–452 Mya — about 0.3 occurrences452–450 Mya — about 0.2 occurrences450–449 Mya — about 0.1 occurrences440–438 Mya — about 0.1 occurrences438–437 Mya — about 0.3 occurrences437–435 Mya — about 0.3 occurrences435–434 Mya — about 0.3 occurrences434–432 Mya — about 0.1 occurrences471.3 Mya438.6 Mya478 Mya432 Mya

5 occurrences of Stenaster obtusus on record, most of them in the Ordovician. 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

5 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

5 formations

Richea Siltstone — 43.00°S, 146.00°EFuruberget — 60.73°N, 10.97°ELexington Limestone — 37.89°N, 84.51°WWah Wah — 38.95°N, 113.48°WAnderken — 43.88°N, 75.55°E

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The named rock units Stenaster obtusus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Stenaster obtusus and its relatives

Ordovician

Where Stenaster obtusus and its relatives were recorded in the Ordovician.

Found in the same rock

40 taxa

The Paleobiology Database records 4 sites for Stenaster obtusus, 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

5 references

Each of the 5 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 Stenaster obtusus

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Stenaster obtusus 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 itStenaster through timeFormations of the OrdovicianThe world it lived on

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