Cyrtocrinida
Cyrtocrinida is an order of sea lilies which contains two suborders and three families.

NOAA Okeanos 2015 · Public Domain · 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 170 million years on record.
The record covers at least 184.2 Mya to 13.82 Mya. No occurrence read is dated outside 201.4 Mya to 12.8 Mya.
121 occurrences of Cyrtocrinida on record, most of them in the Middle 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
121 occurrences- Early Jurassic14%
- Middle Jurassic28%
- Late Jurassic22%
- Early Cretaceous22%
- Late Cretaceous8%
- Paleocene2%
- Eocene2%
- Mioceneunder 1%
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
20 formations
- Dursztyn Formation9
- Yátova Formation6
- Opalinus Clay Formation4
- Maastricht Formation3
- Bilá Formation3
- Theoi Marls Formation3
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The named rock units Cyrtocrinida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 72 occurrences have no formation on record, which is common for older literature.
Cyrtocrinida and its relatives
Middle JurassicWhere Cyrtocrinida and its relatives were recorded in the Middle Jurassic.
Found in the same rock
663 taxa- Cyathidium7 sites
- Praetetracrinus kutscheri6 sites
- Balanocrinus dumortieri5 sites
- Balanocrinus subteres5 sites
- Cyathidium depressum5 sites
- Echinoidea5 sites
- Isocrinus5 sites
- Lonchocrinus dumortieri5 sites
- Metopaster5 sites
- Cyclocrinus rugosus4 sites
- Cyclothyris4 sites
- Cyrtocrinus praenutans4 sites
- Dolichocrinus aberrans4 sites
- Pachytilodia4 sites
- Pilocrinus moussoni4 sites
- Rhabdocidaris4 sites
- Shroshaecrinus quedlinburgensis4 sites
- Ancistrocrania3 sites
- Anthophyllum3 sites
- Asteroidea3 sites
- Atreta3 sites
- Balanocrinus inornatus3 sites
- Balanocrinus subsulcatus3 sites
- Bivalvia3 sites
The Paleobiology Database records 52 sites for Cyrtocrinida, 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
37 references- Crinoids from the Middle Jurassic (Bajocian–Lower Callovian) of Arde`che, France18
- Echinodermata aus dem Ober-Toarcium und Aalenium Deutschlands I. Crinoidea: Cyrtocrinina und Millericrinina12
- Les Torynocrinus (crinoïdes) du Crétacé inférieur de la Hongrie10
- Tithonian crinoids from Rogoznik (Pieniny Klippen Belt, Poland) and their evolutionary relationships9
- Systematics, diversity and paleoecology of cyrtocrinids (Crinoidea, Echinodermata) from the Oxfordian sponge meadows of northeast Spain (Tosos, Zaragoza)6
- Emergence and early radiation of cyrtocrinids, with new species from a Lower to Middle Jurassic rock reef of Feuguerolles (Normandy, France)6
- The La Voulte Lagerstätte (Callovian): Evidence for a deep water setting from sponge and crinoid communities6
- Late Jurassic crinoids from Sudak environs (Crimea)5
- Die Crinoiden aus dem Pliensbachium (mittlerer Lias) von Rottorf am Klei und Empelde (Süd-Niedersachsen)4
- New Eocene species of the crinoid genera Holopus and Cyathidium (Cyrtocrinida: Holopodidae) from north-eastern Italy3
- Les "Marnes à theoi" de Pamproux (Deux-Sèvres, France), Sous-Zone à Antecedens (Oxfordien moyen, Zone à Plicatilis): diversité des faunes et découverte de nouvelles espèces d'ammonites [The "Theoi Marls" of Pamproux (Deux-Sèvres department, France), Antecedens Sub-zone (Middle Oxfordian, Plicatilis Zone): faunal diversity and discovery of new ammonite species]3
- Early Cretaceous (Valanginian) sea lilies (Echinodermata, Crinoidea) from Poland3
Each of the 121 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. 25 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 Cyrtocrinida
- Source
- Wikipedia/Commons
- Credit
- NOAA Okeanos 2015
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Cyrtocrinida 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 Middle JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Sieverts-Doreck 1953