Hapalocrinus

Hapalocrinus

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
HapalocrinidaePBDB
Diet
suspension feederPBDB
Life habit
intermediate-level epifaunalPBDB
Motility
stationary, attachedPBDB
Vision
blindPBDB, for Crinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 22 million years on record.

The record covers at least 432.9 Mya to 410.62 Mya. No occurrence read is dated outside 438.6 Mya to 399.5 Mya.

Silurian — about 5 of 10 occurrencesSilurianDevonian — about 5 of 10 occurrencesDevonian439–438 Mya — about 0.1 occurrences438–437 Mya — about 0.2 occurrences437–435 Mya — about 0.2 occurrences435–434 Mya — about 0.2 occurrences434–433 Mya — about 0.2 occurrences427–426 Mya — about 0.7 occurrences426–424 Mya — about 0.8 occurrences424–423 Mya — about 0.3 occurrences423–422 Mya — about 0.4 occurrences422–420 Mya — about 1.0 occurrences420–419 Mya — about 0.8 occurrences419–418 Mya — about 0.2 occurrences418–416 Mya — about 0.2 occurrences416–415 Mya — about 0.2 occurrences415–414 Mya — about 0.2 occurrences414–412 Mya — about 0.1 occurrences411–410 Mya — about 0.4 occurrences410–408 Mya — about 0.5 occurrences408–407 Mya — about 0.5 occurrences407–405 Mya — about 0.5 occurrences405–404 Mya — about 0.5 occurrences404–403 Mya — about 0.5 occurrences403–401 Mya — about 0.5 occurrences401–400 Mya — about 0.5 occurrences400–399 Mya — about 0.2 occurrences432.9 Mya410.62 Mya439.4 Mya398.7 Mya

10 occurrences of Hapalocrinus on record, most of them in the Silurian. 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

10 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

Hunsrück Slate — 49.89°N, 7.47°EHunsrück Slate — 49.83°N, 7.37°EKeyser Limestone — 39.45°N, 78.97°WDamery Beds — 51.88°N, 2.23°WLochkov — 50.03°N, 14.33°ELower Leintwardine — 52.37°N, 2.88°W

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The named rock units Hapalocrinus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Hapalocrinus and its relatives

Silurian

Where Hapalocrinus and its relatives were recorded in the Silurian.

Found in the same rock

338 taxa

The Paleobiology Database records 8 sites for Hapalocrinus, 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 10 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 Hapalocrinus

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 itHapalocrinidae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Jaekel 1895