Cnemidiastrum

No picture of Cnemidiastrum 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 Cnemidiastrum, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
CnemidiastridaePBDB
Diet
suspension feederPBDB, for Lithistida
Life habit
epifaunalPBDB, for Lithistida
Motility
stationary, attachedPBDB, for Lithistida
Vision
blindPBDB, for Porifera
Environment
marinePBDB, for Lithistida

Time the record covers

At least 153 million years on record.

The record covers at least 165.3 Mya to 11.63 Mya. No occurrence read is dated outside 168.2 Mya to 7.246 Mya.

Middle Jurassic — about 3 of 95 occurrencesLate Jurassic — about 87 of 95 occurrencesLate JurassicEarly Cretaceous — about 1 of 95 occurrencesEarly CretaceousLate Cretaceous — about 0 of 95 occurrencesPaleocene — about 0 of 95 occurrencesEocene — about 0 of 95 occurrencesOligocene — about 0 of 95 occurrencesMiocene — about 4 of 95 occurrencesMiocenePliocene — about 0 of 95 occurrences171–166 Mya — about 2 occurrences166–160 Mya — about 18 occurrences160–155 Mya — about 58 occurrences155–149 Mya — about 9 occurrences149–144 Mya — about 3 occurrences144–138 Mya — about 0.2 occurrences127–121 Mya — about 0.0 occurrences121–116 Mya — about 0.7 occurrences116–110 Mya — about 0.3 occurrences15–9.6 Mya — about 2 occurrences9.6–4.0 Mya — about 2 occurrences165.3 Mya11.63 Mya171 Mya4 Mya

95 occurrences of Cnemidiastrum on record, most of them in the Late 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

95 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

4 formations

Jasna Gora — 50.07°N, 19.62°EJasna Gora — 50.45°N, 19.52°EJasna Gora — 50.42°N, 19.35°EJasna Gora — 50.73°N, 19.13°EPatcham — 23.70°N, 69.05°ECalcaires Lites — 45.78°N, 5.52°ECouches de Birmensdorf — 46.25°N, 5.67°E

Loading coastlines…

The named rock units Cnemidiastrum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 39 occurrences have no formation on record, which is common for older literature.

Cnemidiastrum and its relatives

Late Jurassic

Where Cnemidiastrum and its relatives were recorded in the Late Jurassic.

Found in the same rock

436 taxa

The Paleobiology Database records 28 sites for Cnemidiastrum, 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

14 references

Each of the 95 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. 2 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 content0

No picture of Cnemidiastrum 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 Cnemidiastrum, or no answer at all. This entry cannot say which.

No 3D scan of Cnemidiastrum 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.

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

Keep going

What may have been alongside itCnemidiastridae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Zittel 1878