Isotomurus retardatus

Zakqary Roy · CC BY 4.0 · via GBIF. 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
- IsotomurusPBDB
- Motility
- actively mobilePBDB, for Arthropoda
- Environment
- terrestrialPBDB, for Collembola
Time the record covers
At most 7.1 million years on record.
The one occurrence read is dated to somewhere between 23.04 Mya and 15.98 Mya, which is a dating window rather than a span.
1 occurrence of Isotomurus retardatus 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
1 occurrences- Miocene100%
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.
Isotomurus retardatus and its relatives
MioceneWhere Isotomurus retardatus and its relatives were recorded in the Miocene.
Found in the same rock
12 taxa- Archipsocopsis antigua1 site
- Archipsocus (Archipsocus)1 site
- Entomobrya1 site
- Hersiliidae1 site
- Micromalthus debilis1 site
- Mirometa valdespinosa1 site
- Oeclixius amphion1 site
- Oppia hurdi1 site
- Orchestina mortua1 site
- Philosepedon usitata1 site
- Scatopse primula1 site
- Trichomyia mecocerca1 site
The Paleobiology Database records 1 site for Isotomurus retardatus, and this reads all of them. The number is how many of those sites it was catalogued from too.
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 referenceEach of the 1 occurrence 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 the Paleobiology Database's own record for the work.
Media and terms
Media content1

Picture of Isotomurus retardatus
- Source
- GBIF
- Credit
- Zakqary Roy
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Isotomurus retardatus 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 itIsotomurus through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Folsom 1937