Synaptidae

François Michonneau · CC BY 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
- ApodidaPBDB
- Diet
- detritivorePBDB, for Apodida
- Life habit
- epifaunalPBDB, for Apodida
- Motility
- actively mobilePBDB, for Apodida
- Vision
- blindPBDB, for Holothuroidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 321 million years on record.
The record covers at least 323.6 Mya to 2.58 Mya. No occurrence read is dated outside 326.9 Mya to 11.7 ka.
15 occurrences of Synaptidae on record, most of them in the Late Cretaceous. The Paleobiology Database records this as a living group. 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
15 occurrencesThese 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
6 formations
- White Chalk Formation2
- Shueib Formation · Ajlun Group2
- San Cassiano Formation1
- Marnes de Gan Formation1
- Furkaska Formation1
- Upper Limestone Formation · Clackmannan Group1
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The named rock units Synaptidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.
Synaptidae and its relatives
Late CretaceousWhere Synaptidae and its relatives were recorded in the Late Cretaceous.
Found in the same rock
256 taxa- Calcancora3 sites
- Theelia3 sites
- Echinocorys2 sites
- Osteocrinus rectus2 sites
- Pentapriscopedatus sp.2 sites
- Priscopedatus2 sites
- Priscopedatus anceps2 sites
- Priscopedatus normani2 sites
- Rigaudites2 sites
- Staurocumites bartensteini2 sites
- Theelia serta2 sites
- Tripuscucumis solveigae2 sites
- Acanthotheelia anisica1 site
- Acanthotheelia spinosa1 site
- Achistrum1 site
- Achistrum ludwigi1 site
- Achistrum monochordata1 site
- Acirsa1 site
- Amphiura plana1 site
- Amphorometra conoidea1 site
- Amphorometra rugiana1 site
- Anthracoceras glabrum1 site
- Anthracoceras paucilobum1 site
- Aphrocallistes alveolites1 site
The Paleobiology Database records 9 sites for Synaptidae, 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
9 references- Apodid sea cucumbers (Echinodermata: Holothuroidea) from the Upper Turonian of the Isle of Wolin, NW Poland5
- Two new holothurian sclerite genera from the Late Cretaceous of Jordan2
- The echinoderms of the Rügen White Chalk (Maastrichtian, Germany)2
- The Prati di Stuores/Stuores Wiesen Section (Dolomites, Italy): a candidate Global Stratotype Section and Point for the base of the Carnian stage.1
- Triassic Holothurian sclerites from Tatra mountains1
- A new species of Holothurian sclerite from the Pleistocene of the Arabian Sea1
- Révision du manipule Synaptites sclérites d'holothuries fossiles1
- Seconde note sur les holothuridées du Calcaire Grossier1
- On the presence of scattered skeletal remains of Holothuroidea in the Carboniferous limestone series of Scotland1
Each of the 15 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 Synaptidae
- Source
- Wikidata/Commons
- Credit
- François Michonneau
- Licence
- CC BY 3.0
- Commercial use
- the licence allows it
No 3D scan of Synaptidae was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itApodida through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Burmeister 1837