Pachymerina

Pachymerina

Willow Warren, Department of Agriculture and Food WA · CC BY 3.0 au · 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
PachymeriniPBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At most 8 million years on record.

Every occurrence read is dated to somewhere between 56 Mya and 48.07 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Paleocene — about 0 of 3 occurrencesEocene — about 3 of 3 occurrencesEocene56–56 Mya — about 0.0 occurrences56–56 Mya — about 0.1 occurrences56–55 Mya — about 0.1 occurrences55–55 Mya — about 0.1 occurrences55–55 Mya — about 0.1 occurrences55–54 Mya — about 0.1 occurrences54–54 Mya — about 0.1 occurrences54–54 Mya — about 0.1 occurrences54–54 Mya — about 0.1 occurrences54–53 Mya — about 0.1 occurrences53–53 Mya — about 0.1 occurrences53–53 Mya — about 0.1 occurrences53–52 Mya — about 0.1 occurrences52–52 Mya — about 0.1 occurrences52–52 Mya — about 0.1 occurrences52–51 Mya — about 0.1 occurrences51–51 Mya — about 0.1 occurrences51–51 Mya — about 0.1 occurrences51–51 Mya — about 0.1 occurrences51–50 Mya — about 0.1 occurrences50–50 Mya — about 0.1 occurrences50–50 Mya — about 0.1 occurrences50–49 Mya — about 0.1 occurrences49–49 Mya — about 0.1 occurrences49–49 Mya — about 0.1 occurrences49–48 Mya — about 0.1 occurrences48–48 Mya — about 0.1 occurrences48–48 Mya — about 0.0 occurrences56.5 Mya47.6 Mya

3 occurrences of Pachymerina 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

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

2 formations

Tranquille — 50.13°N, 120.51°WKlondike Mountain — 48.66°N, 118.75°W

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The named rock units Pachymerina 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.

Pachymerina and its relatives

Eocene

Where Pachymerina and its relatives were recorded in the Eocene.

Found in the same rock

103 taxa

The Paleobiology Database records 3 sites for Pachymerina, 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 Pachymerina

Credit
Willow Warren, Department of Agriculture and Food WA
Licence
CC BY 3.0 au
Commercial use
the licence allows it

No 3D scan of Pachymerina 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 itPachymerini through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Bridwell 1929