Calclamna

Calclamna is an extinct genus of sea cucumber which existed in Europe during the Triassic and Jurassic period. The type species is Calclamna germanica.

No picture of Calclamna was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Calclamna, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
CalclamnidaePBDB
Diet
suspension feeder, detritivorePBDB, for Dendrochirotida
Life habit
epifaunalPBDB, for Dendrochirotida
Motility
stationaryPBDB, for Dendrochirotida
Vision
blindPBDB, for Holothuroidea
Environment
marinePBDB, for Dendrochirotida

Time the record covers

At least 230 million years on record.

The record covers at least 243.43 Mya to 12.8 Mya. No occurrence read is dated outside 244.4 Mya to 5.333 Mya.

Early Triassic — about 0 of 32 occurrencesMiddle Triassic — about 1 of 32 occurrencesLate Triassic — about 5 of 32 occurrencesLate TriassicEarly Jurassic — about 1 of 32 occurrencesEarly JurassicMiddle Jurassic — about 19 of 32 occurrencesLate Jurassic — about 0 of 32 occurrencesEarly Cretaceous — about 0 of 32 occurrencesLate Cretaceous — about 3 of 32 occurrencesLate CretaceousPaleocene — about 0 of 32 occurrencesEocene — about 0 of 32 occurrencesOligocene — about 0 of 32 occurrencesMiocene — about 3 of 32 occurrencesPliocene — about 0 of 32 occurrencesPleistocene — about 0 of 32 occurrences249–241 Mya — about 1 occurrence241–233 Mya — about 1 occurrence233–224 Mya — about 0.5 occurrences224–216 Mya — about 0.5 occurrences216–208 Mya — about 2 occurrences208–199 Mya — about 2 occurrences175–166 Mya — about 13 occurrences166–158 Mya — about 6 occurrences108–100 Mya — about 0.1 occurrences100–92 Mya — about 1 occurrence92–83 Mya — about 0.5 occurrences75–67 Mya — about 0.9 occurrences67–59 Mya — about 0.1 occurrences25–17 Mya — about 0.7 occurrences17–8.8 Mya — about 2 occurrences8.8–552 ka Mya — about 0.4 occurrences243.43 Mya12.8 Mya249 Mya552 ka

32 occurrences of Calclamna on record, most of them in the Middle 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

32 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

6 formations

Shueib — 32.12°N, 35.85°EWhite Chalk — 54.52°N, 13.63°EHallstätterkalk — 48.53°N, 20.47°EHallstatt — 47.90°N, 16.10°EKorytnica Limestones — 48.94°N, 19.26°EScheibelberg — 47.62°N, 12.58°E

Loading coastlines…

The named rock units Calclamna has been recovered from, largest first. Drawn where the rock is now, not where it formed. 25 occurrences have no formation on record, which is common for older literature.

Calclamna and its relatives

Middle Jurassic

Where Calclamna and its relatives were recorded in the Middle Jurassic.

Found in the same rock

432 taxa

The Paleobiology Database records 29 sites for Calclamna, 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

12 references

Each of the 32 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 content0

No picture of Calclamna was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Calclamna, or no answer at all. This entry cannot say which.

No 3D scan of Calclamna 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.

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 itCalclamnidae through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Frizzell and Exline 1955