Isocrinida

Isocrinida is an order of sea lilies which contains four families.

Isocrinida

Wilson44691 · CC0 · via Wikipedia/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
ArticulataPBDB
Diet
suspension feederPBDB
Life habit
epifaunalPBDB
Motility
stationaryPBDB
Vision
blindPBDB, for Crinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 272 million years on record.

The record covers at least 274.4 Mya to 1.8 Mya. No occurrence read is dated outside 283.3 Mya to 774 ka.

Permian — about 1 of 691 occurrencesPermianEarly Triassic — about 1 of 691 occurrencesMiddle Triassic — about 49 of 691 occurrencesLate Triassic — about 102 of 691 occurrencesLate TriassicEarly Jurassic — about 175 of 691 occurrencesEarly JurassicMiddle Jurassic — about 81 of 691 occurrencesLate Jurassic — about 53 of 691 occurrencesEarly Cretaceous — about 83 of 691 occurrencesEarly CretaceousLate Cretaceous — about 64 of 691 occurrencesLate CretaceousPaleocene — about 16 of 691 occurrencesEocene — about 47 of 691 occurrencesOligocene — about 11 of 691 occurrencesMiocene — about 7 of 691 occurrencesPliocene — about 0 of 691 occurrencesPleistocene — about 1 of 691 occurrences289–279 Mya — about 0.4 occurrences279–270 Mya — about 0.6 occurrences260–250 Mya — about 0.0 occurrences250–241 Mya — about 38 occurrences241–231 Mya — about 58 occurrences231–222 Mya — about 27 occurrences222–212 Mya — about 12 occurrences212–202 Mya — about 15 occurrences202–193 Mya — about 66 occurrences193–183 Mya — about 97 occurrences183–173 Mya — about 16 occurrences173–164 Mya — about 64 occurrences164–154 Mya — about 50 occurrences154–144 Mya — about 15 occurrences144–135 Mya — about 13 occurrences135–125 Mya — about 16 occurrences125–116 Mya — about 12 occurrences116–106 Mya — about 14 occurrences106–96 Mya — about 39 occurrences96–87 Mya — about 16 occurrences87–77 Mya — about 15 occurrences77–67 Mya — about 21 occurrences67–58 Mya — about 18 occurrences58–48 Mya — about 13 occurrences48–39 Mya — about 16 occurrences39–29 Mya — about 27 occurrences29–19 Mya — about 6 occurrences19–9.6 Mya — about 3 occurrences9.6–0 Mya — about 3 occurrences274.4 Mya1.8 Mya289 Mya0 Mya

691 occurrences of Isocrinida on record, most of them in the Early Jurassic. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

691 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

157 formations

Red Chalk — 54.15°N, 0.23°WRed Chalk — 53.67°N, 0.50°WQingyan — 26.33°N, 106.68°ECassian — 46.64°N, 12.20°ECassian — 46.52°N, 11.96°ECassian — 46.53°N, 11.92°ECassian — 46.68°N, 12.15°ECassian — 46.54°N, 11.62°ECassian — 46.51°N, 11.76°ECassian — 46.60°N, 12.26°EBlue Lias — 50.00°N, 2.00°WBlue Lias — 51.00°N, 3.00°WBlue Lias — 51.90°N, 2.22°WBlue Lias — 51.41°N, 3.17°WBlue Lias — 50.71°N, 2.96°WKeasey — 45.77°N, 123.24°WKeasey — 46.00°N, 123.26°WKeasey — 45.72°N, 123.20°WKeasey — 45.74°N, 123.27°WKeasey — 44.35°N, 124.10°WKeasey — 45.91°N, 123.20°WLa Meseta — 64.23°S, 56.61°WLa Meseta — 64.24°S, 56.66°WLa Meseta — 64.25°S, 56.61°WLa Meseta — 64.26°S, 56.68°WWhitby Mudstone — 54.45°N, 0.57°WLuning — 38.87°N, 117.62°WLuning — 38.43°N, 118.05°WLuning — 38.43°N, 118.12°WHiraiga — 40.09°N, 141.84°EHiraiga — 39.83°N, 141.99°EChambara — 6.43°S, 79.83°WChambara — 10.85°S, 75.98°WChambara — 11.47°S, 75.68°WChambara — 10.85°S, 76.17°WLower Lias — 51.80°N, 1.88°WKap Leslie — 70.48°N, 21.97°WLondon Clay — 51.40°N, 0.83°ELondon Clay — 50.83°N, 0.78°WLondon Clay — 50.78°N, 0.65°WLondon Clay — 51.51°N, 0.24°EMaastricht — 50.85°N, 5.70°EMaastricht — 50.85°N, 6.77°EMaastricht — 50.86°N, 5.79°EWhite Chalk — 54.52°N, 13.63°EWilmington Sands — 50.80°N, 0.18°ECalcari Oolitici di S. Vigilio — 45.75°N, 11.13°EBilá — 49.98°N, 15.60°EVincentown — 39.97°N, 74.68°WVincentown — 39.94°N, 74.75°WVincentown — 39.93°N, 74.73°WLiard — 56.16°N, 122.55°WLiard — 56.10°N, 122.87°WGrizzle — 50.80°N, 0.18°EMarnes de Latrecey — 47.98°N, 4.85°ETanohata — 40.09°N, 141.84°ELautaro — 29.11°S, 70.30°WLautaro — 29.43°S, 70.13°WLautaro — 28.13°S, 69.96°WLautaro — 27.70°S, 69.61°W

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The named rock units Isocrinida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 133 further formations hold fewer occurrences each and are not listed. 282 occurrences have no formation on record, which is common for older literature.

Isocrinida and its relatives

Early Jurassic

Where Isocrinida and its relatives were recorded in the Early Jurassic.

Found in the same rock

3,302 taxa

The Paleobiology Database records 487 sites for Isocrinida, and this reads 240 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

249 references

Each of the 691 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. 237 further references are not listed. 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 Isocrinida

Credit
Wilson44691
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Isocrinida 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.

The description on this site

Licence
CC BY-SA 4.0

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

Keep going

What may have been alongside itArticulata through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Sieverts-Doreck 1952