Seirocrinus subangularis

Seirocrinus subangularis

Ghedoghedo · CC BY-SA 3.0 · via Wikidata/Commons. 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
SeirocrinusPBDB
Diet
suspension feederPBDB, for Isocrinida
Life habit
planktonicPBDB, for Seirocrinus
Motility
stationaryPBDB, for Isocrinida
Vision
blindPBDB, for Crinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At most 17 million years on record.

Every occurrence read is dated to somewhere between 199.5 Mya and 182.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Jurassic — about 8 of 8 occurrencesEarly Jurassic200–199 Mya — about 0.0 occurrences199–199 Mya — about 0.0 occurrences199–198 Mya — about 0.0 occurrences198–198 Mya — about 0.0 occurrences198–197 Mya — about 0.0 occurrences197–196 Mya — about 0.0 occurrences196–196 Mya — about 0.0 occurrences196–195 Mya — about 0.0 occurrences195–195 Mya — about 0.0 occurrences195–194 Mya — about 0.0 occurrences194–194 Mya — about 0.0 occurrences194–193 Mya — about 0.0 occurrences193–192 Mya — about 0.3 occurrences192–192 Mya — about 0.3 occurrences192–191 Mya — about 0.3 occurrences191–191 Mya — about 0.3 occurrences191–190 Mya — about 0.3 occurrences190–189 Mya — about 0.3 occurrences189–189 Mya — about 0.3 occurrences189–188 Mya — about 0.3 occurrences188–188 Mya — about 0.3 occurrences188–187 Mya — about 0.3 occurrences187–187 Mya — about 0.3 occurrences187–186 Mya — about 0.3 occurrences186–185 Mya — about 0.3 occurrences185–185 Mya — about 0.3 occurrences185–184 Mya — about 0.4 occurrences184–184 Mya — about 1 occurrence184–183 Mya — about 1 occurrence183–182 Mya — about 0.2 occurrences200 Mya182.4 Mya

8 occurrences of Seirocrinus subangularis on record, most of them in the Early Jurassic. 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

8 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

Whitby Mudstone — 54.45°N, 0.57°WFernie — 52.27°N, 113.80°WKingak — 68.32°N, 137.78°WLower Marly Limestone — 34.06°N, 5.52°WAin Ouarka — 32.71°N, 0.16°W

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The named rock units Seirocrinus subangularis 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.

Seirocrinus subangularis and its relatives

Early Jurassic

Where Seirocrinus subangularis and its relatives were recorded in the Early Jurassic.

Found in the same rock

70 taxa

The Paleobiology Database records 8 sites for Seirocrinus subangularis, 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 8 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 content2

Picture of Seirocrinus subangularis

Credit
Ghedoghedo
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial-ShareAlike
Commercial use
the licence does not allow it

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 itSeirocrinus through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Miller 1821)