Plagiochasma

Plagiochasma is an extinct echinoderm genus in the family Pygaulidae.

No picture of Plagiochasma was found. Wikipedia and iDigBio were searched and had none. Wikidata has a picture filed under this name, but nothing tied it to Plagiochasma itself, so it was not used. 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 Plagiochasma, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
NucleolitidaePBDB
Diet
grazer, deposit feederPBDB, for Echinoidea
Life habit
epifaunalPBDB, for Echinoidea
Motility
actively mobilePBDB, for Echinoidea
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 66 million years on record.

The record covers at least 125.77 Mya to 59.24 Mya. No occurrence read is dated outside 132.6 Mya to 56 Mya.

Early Cretaceous — about 26 of 42 occurrencesEarly CretaceousLate Cretaceous — about 3 of 42 occurrencesLate CretaceousPaleocene — about 13 of 42 occurrencesPaleoceneEocene — about 0 of 42 occurrences134–131 Mya — about 4 occurrences131–129 Mya — about 10 occurrences129–126 Mya — about 10 occurrences126–124 Mya — about 2 occurrences102–100 Mya — about 0.1 occurrences100–97 Mya — about 0.4 occurrences97–94 Mya — about 0.4 occurrences94–92 Mya — about 0.1 occurrences73–70 Mya — about 0.5 occurrences70–68 Mya — about 0.7 occurrences68–65 Mya — about 3 occurrences65–62 Mya — about 7 occurrences62–60 Mya — about 2 occurrences60–57 Mya — about 1 occurrence57–54 Mya — about 0.7 occurrences125.77 Mya59.24 Mya134 Mya54 Mya

42 occurrences of Plagiochasma on record, most of them in the Early 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

42 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

8 formations

Calcaires à spatangues — 48.54°N, 5.05°ECalcaires à spatangues — 48.45°N, 4.99°ECalcaires à spatangues — 48.17°N, 4.34°ECalcaires à spatangues — 48.11°N, 4.33°ECalcaires à spatangues — 48.08°N, 4.24°ECalcaires à spatangues — 48.02°N, 4.15°ECalcaires à spatangues — 48.02°N, 4.04°ECalcaires à spatangues — 47.94°N, 3.98°ECalcaires à spatangues — 47.92°N, 3.88°ECalcaires à spatangues — 47.99°N, 4.08°ECalcaires à spatangues — 47.87°N, 3.66°ECalcaires à spatangues — 47.84°N, 3.73°ECalcaires à spatangues — 47.51°N, 3.12°ECalcaires à spatangues — 47.57°N, 3.23°ECalcaires à spatangues — 47.55°N, 3.18°ECalcaires à spatangues — 47.42°N, 2.79°EClayton — 31.95°N, 86.31°WClayton — 30.71°N, 84.86°WClayton — 31.93°N, 86.68°WClayton — 31.95°N, 86.71°WClayton — 31.72°N, 86.26°WClayton — 31.77°N, 84.79°WClayton — 34.56°N, 92.56°WVincentown — 39.97°N, 74.68°WMaastricht — 50.85°N, 5.70°EMaastricht — 50.86°N, 5.79°EPierre jaune — 47.02°N, 6.98°EBruderndorf — 48.53°N, 16.33°ECalcaires récifaux — 38.81°N, 9.47°WHalal — 30.79°N, 33.48°E

Loading coastlines…

The named rock units Plagiochasma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Plagiochasma and its relatives

Early Cretaceous

Where Plagiochasma and its relatives were recorded in the Early Cretaceous.

Found in the same rock

382 taxa

The Paleobiology Database records 41 sites for Plagiochasma, 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

11 references

Each of the 42 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 Plagiochasma was found. Wikipedia and iDigBio were searched and had none.

Wikidata has a picture filed under this name, but nothing tied it to Plagiochasma itself, so it was not used.

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 Plagiochasma, or no answer at all. This entry cannot say which.

No 3D scan of Plagiochasma 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 itNucleolitidae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.