Trachypachus holmbergi

Trachypachus holmbergi, Holmberg’s temporal false ground beetle, is a species of beetle in the family Trachypachidae. This species is found in the United States and Canada, where it is found from lowlands to mountains.

Trachypachus holmbergi

Uncredited · via Wikipedia/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
TrachypachusPBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At most 8.1 million years on record.

Every occurrence read is dated to somewhere between 11.63 Mya and 3.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Miocene — about 2 of 3 occurrencesMiocenePliocene — about 1 of 3 occurrencesPliocene12–12 Mya — about 0.0 occurrences12–11 Mya — about 0.1 occurrences11–11 Mya — about 0.1 occurrences11–11 Mya — about 0.1 occurrences11–10 Mya — about 0.1 occurrences10–10 Mya — about 0.1 occurrences10–9.7 Mya — about 0.1 occurrences9.7–9.4 Mya — about 0.1 occurrences9.4–9.1 Mya — about 0.1 occurrences9.1–8.8 Mya — about 0.1 occurrences8.8–8.5 Mya — about 0.1 occurrences8.5–8.2 Mya — about 0.1 occurrences8.2–7.9 Mya — about 0.1 occurrences7.9–7.6 Mya — about 0.1 occurrences7.6–7.3 Mya — about 0.1 occurrences7.3–7.0 Mya — about 0.1 occurrences7.0–6.7 Mya — about 0.1 occurrences6.7–6.4 Mya — about 0.1 occurrences6.4–6.1 Mya — about 0.1 occurrences6.1–5.8 Mya — about 0.1 occurrences5.8–5.5 Mya — about 0.1 occurrences5.5–5.2 Mya — about 0.1 occurrences5.2–4.9 Mya — about 0.2 occurrences4.9–4.6 Mya — about 0.2 occurrences4.6–4.3 Mya — about 0.2 occurrences4.3–4.0 Mya — about 0.2 occurrences4.0–3.7 Mya — about 0.2 occurrences3.7–3.4 Mya — about 0.1 occurrences12.1 Mya3.1 Mya

3 occurrences of Trachypachus holmbergi on record, most of them in the Miocene. 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

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

Begunovskaya — 68.17°N, 157.75°E

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The named rock units Trachypachus holmbergi 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.

Trachypachus holmbergi and its relatives

Miocene

Where Trachypachus holmbergi and its relatives were recorded in the Miocene.

Found in the same rock

45 taxa

The Paleobiology Database records 3 sites for Trachypachus holmbergi, 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

1 reference

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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Trachypachus holmbergi

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Trachypachus holmbergi 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 itTrachypachus through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Mannerheim 1853