Holocentropus

Holocentropus

Hallvard Elven, Naturhistorisk museum, Universitetet i Oslo · CC BY 4.0 · via Wikidata/Commons. 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
PolycentropodidaePBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At least 45 million years on record.

The record covers at least 83.6 Mya to 37.71 Mya. No occurrence read is dated outside 85.7 Mya to 33.9 Mya.

Late Cretaceous — about 1 of 104 occurrencesLate CretaceousPaleocene — about 0 of 104 occurrencesEocene — about 103 of 104 occurrencesEoceneOligocene — about 0 of 104 occurrences87–85 Mya — about 0.4 occurrences85–83 Mya — about 0.6 occurrences38–36 Mya — about 34 occurrences36–35 Mya — about 49 occurrences35–33 Mya — about 21 occurrences83.6 Mya37.71 Mya87 Mya33 Mya

104 occurrences of Holocentropus on record, most of them in the Eocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

104 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

Kheta — 71.31°N, 99.56°E

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The named rock units Holocentropus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 103 occurrences have no formation on record, which is common for older literature.

Holocentropus and its relatives

Eocene

Where Holocentropus and its relatives were recorded in the Eocene.

Found in the same rock

2,809 taxa

The Paleobiology Database records 31 sites for Holocentropus, 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

15 references

Each of the 104 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. 3 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 content1

Picture of Holocentropus

Credit
Hallvard Elven, Naturhistorisk museum, Universitetet i Oslo
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Holocentropus 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 itPolycentropodidae through timeFormations of the EoceneThe world it lived on

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