Radulichnus sp.

Radulichnus is an ichnogenus of trace fossil which resembles the marks produced by the action of a mollusc's radula on sediment. As an ichnogenus, its classification is based solely on appearance, and does not necessarily imply anything of the affinity of the organism which produced the trace. However, fossils of Kimberella have been found at or near the ends of Radulichnus traces, leading to the possibility that some traces were made by Kimberella.

No picture of Radulichnus sp. was found. Wikipedia and Wikidata were searched and had none. iDigBio and GBIF were not searched: the Paleobiology Database does not place Radulichnus sp. firmly enough to tell it from something else bearing the same name, and a search on the name alone returns whichever of them was photographed. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

Time the record covers

At least 538 million years on record.

The record covers at least 538.8 Mya to 11.7 ka. No occurrence read is dated outside 635 Mya to 0 Mya.

Cambrian — about 0 of 4 occurrencesOrdovician — about 0 of 4 occurrencesSilurian — about 0 of 4 occurrencesDevonian — about 0 of 4 occurrencesCarboniferous — about 0 of 4 occurrencesPermian — about 0 of 4 occurrencesEarly Triassic — about 0 of 4 occurrencesMiddle Triassic — about 0 of 4 occurrencesLate Triassic — about 0 of 4 occurrencesEarly Jurassic — about 0 of 4 occurrencesMiddle Jurassic — about 0 of 4 occurrencesLate Jurassic — about 0 of 4 occurrencesEarly Cretaceous — about 0 of 4 occurrencesLate Cretaceous — about 0 of 4 occurrencesPaleocene — about 0 of 4 occurrencesEocene — about 0 of 4 occurrencesOligocene — about 0 of 4 occurrencesMiocene — about 0 of 4 occurrencesPliocene — about 0 of 4 occurrencesPleistocene — about 0 of 4 occurrences648–626 Mya — about 0.3 occurrences626–605 Mya — about 0.7 occurrences605–583 Mya — about 0.7 occurrences583–561 Mya — about 0.7 occurrences561–540 Mya — about 0.7 occurrences540–518 Mya — about 0.0 occurrences22–0 Mya — about 1 occurrence538.8 Mya11.7 ka648 Mya0 Mya

4 occurrences of Radulichnus sp. on record. 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

4 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

Kushk — 31.70°N, 55.83°E

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The named rock units Radulichnus sp. 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.

Found in the same rock

19 taxa

The Paleobiology Database records 4 sites for Radulichnus sp., 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

2 references

Each of the 4 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 content0

No picture of Radulichnus sp. was found. Wikipedia and Wikidata were searched and had none.

iDigBio and GBIF were not searched: the Paleobiology Database does not place Radulichnus sp. firmly enough to tell it from something else bearing the same name, and a search on the name alone returns whichever of them was photographed.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

No 3D scan of Radulichnus sp. 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.

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 itThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.