Semiometra courvillensis

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

On record

Recorded, not inferred
Sits inside
SemiometraPBDB
Diet
suspension feederPBDB, for Comatulida
Life habit
intermediate-level epifaunalPBDB, for Comatulida
Motility
facultatively mobile, attachedPBDB, for Comatulida
Vision
blindPBDB, for Crinoidea
Environment
marinePBDB, for Comatulida

Time the record covers

At least 6.2 million years on record.

The record covers at least 89.8 Mya to 83.6 Mya. No occurrence read is dated outside 93.9 Mya to 72.2 Mya.

Late Cretaceous — about 3 of 3 occurrencesLate Cretaceous94–94 Mya — about 0.1 occurrences94–93 Mya — about 0.4 occurrences93–92 Mya — about 0.4 occurrences92–91 Mya — about 0.4 occurrences91–91 Mya — about 0.4 occurrences91–90 Mya — about 0.4 occurrences90–89 Mya — about 0.0 occurrences84–83 Mya — about 0.0 occurrences83–82 Mya — about 0.1 occurrences82–82 Mya — about 0.1 occurrences82–81 Mya — about 0.1 occurrences81–80 Mya — about 0.1 occurrences80–79 Mya — about 0.1 occurrences79–79 Mya — about 0.1 occurrences79–78 Mya — about 0.1 occurrences78–77 Mya — about 0.1 occurrences77–76 Mya — about 0.1 occurrences76–75 Mya — about 0.1 occurrences75–75 Mya — about 0.1 occurrences75–74 Mya — about 0.1 occurrences74–73 Mya — about 0.1 occurrences73–72 Mya — about 0.1 occurrences72–72 Mya — about 0.0 occurrences89.8 Mya83.6 Mya94.4 Mya71.7 Mya

3 occurrences of Semiometra courvillensis on record, most of them in the Late Cretaceous. 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

3 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

1 formation

Campanien 1-2 — 45.75°N, 0.47°W

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The named rock units Semiometra courvillensis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Semiometra courvillensis and its relatives

Late Cretaceous

Where Semiometra courvillensis and its relatives were recorded in the Late Cretaceous.

Found in the same rock

50 taxa

The Paleobiology Database records 2 sites for Semiometra courvillensis, 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

2 references

Each of the 3 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content0

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

No 3D scan of Semiometra courvillensis 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 itSemiometra through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Valette 1917)