Onychaster

Onychaster

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
OnychasteridaePBDB
Diet
suspension feederPBDB, for Phrynophiurida
Life habit
epifaunalPBDB, for Phrynophiurida
Motility
actively mobilePBDB, for Phrynophiurida
Vision
blindPBDB, for Ophiuroidea
Environment
marinePBDB, for Phrynophiurida

Time the record covers

At least 22 million years on record.

The record covers at least 358.86 Mya to 335.9 Mya. No occurrence read is dated outside 372.15 Mya to 330.3 Mya.

Devonian — about 2 of 5 occurrencesDevonianCarboniferous — about 3 of 5 occurrencesCarboniferous373–372 Mya — about 0.0 occurrences372–370 Mya — about 0.1 occurrences370–369 Mya — about 0.1 occurrences369–367 Mya — about 0.1 occurrences367–366 Mya — about 0.1 occurrences366–364 Mya — about 0.3 occurrences364–363 Mya — about 0.3 occurrences363–361 Mya — about 0.3 occurrences361–360 Mya — about 0.3 occurrences360–358 Mya — about 0.2 occurrences353–351 Mya — about 0.1 occurrences351–350 Mya — about 0.2 occurrences350–348 Mya — about 0.2 occurrences348–347 Mya — about 0.2 occurrences347–345 Mya — about 0.3 occurrences345–344 Mya — about 0.4 occurrences344–343 Mya — about 0.3 occurrences343–341 Mya — about 0.2 occurrences341–340 Mya — about 0.2 occurrences337–335 Mya — about 0.1 occurrences335–334 Mya — about 0.3 occurrences334–332 Mya — about 0.3 occurrences332–331 Mya — about 0.3 occurrences331–329 Mya — about 0.1 occurrences358.86 Mya335.9 Mya373 Mya329.5 Mya

5 occurrences of Onychaster 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

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

2 formations

Monteagle Limestone — 34.63°N, 86.55°WMuldraugh — 40.06°N, 86.90°W

Loading coastlines…

The named rock units Onychaster has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Onychaster and its relatives

Carboniferous

Where Onychaster and its relatives were recorded in the Carboniferous.

Found in the same rock

132 taxa

The Paleobiology Database records 5 sites for Onychaster, 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 Onychaster

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

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itOnychasteridae through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Meek and Worthen 1868