Dichentomum

Dichentomum

via iDigBio · CC0 · via iDigBio. 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
PsocidiidaePBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At least 10 million years on record.

The record covers at least 293.52 Mya to 283.3 Mya. No occurrence read is dated outside 298.9 Mya to 274.4 Mya.

Carboniferous — about 0 of 26 occurrencesPermian — about 26 of 26 occurrencesPermian299–299 Mya — about 0.2 occurrences299–298 Mya — about 0.5 occurrences298–297 Mya — about 0.5 occurrences297–296 Mya — about 0.5 occurrences296–295 Mya — about 0.5 occurrences295–294 Mya — about 0.5 occurrences294–293 Mya — about 0.4 occurrences291–290 Mya — about 0.2 occurrences290–289 Mya — about 3 occurrences289–288 Mya — about 3 occurrences288–288 Mya — about 3 occurrences288–287 Mya — about 3 occurrences287–286 Mya — about 3 occurrences286–285 Mya — about 3 occurrences285–284 Mya — about 3 occurrences284–283 Mya — about 3 occurrences283–282 Mya — about 0.1 occurrences282–282 Mya — about 0.1 occurrences282–281 Mya — about 0.1 occurrences281–280 Mya — about 0.1 occurrences280–279 Mya — about 0.1 occurrences279–278 Mya — about 0.1 occurrences278–277 Mya — about 0.1 occurrences277–276 Mya — about 0.1 occurrences276–276 Mya — about 0.1 occurrences276–275 Mya — about 0.1 occurrences275–274 Mya — about 0.0 occurrences293.52 Mya283.3 Mya299.4 Mya273.9 Mya

26 occurrences of Dichentomum on record, most of them in the Permian. 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

26 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

3 formations

Wellington — 36.28°N, 97.28°WWellington — 38.64°N, 97.21°WBursum — 34.84°N, 106.91°WKoshelevka — 57.03°N, 57.72°E

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The named rock units Dichentomum has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Dichentomum and its relatives

Permian

Where Dichentomum and its relatives were recorded in the Permian.

Found in the same rock

414 taxa

The Paleobiology Database records 12 sites for Dichentomum, 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

Each of the 26 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 Dichentomum

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Dichentomum 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 itPsocidiidae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Tillyard 1926