Acanthichnus

No picture of Acanthichnus was found. Wikidata was searched and had none. iDigBio and GBIF were not searched: the Paleobiology Database does not place Acanthichnus 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. Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

On record

Recorded, not inferred
Sits inside
IchnofossilsPBDB

Time the record covers

At least 4.3 million years on record.

The record covers at least 205.7 Mya to 201.4 Mya. No occurrence read is dated outside 227.3 Mya to 192.9 Mya.

Late Triassic — about 3 of 12 occurrencesLate TriassicEarly Jurassic — about 9 of 12 occurrencesEarly Jurassic228–227 Mya — about 0.1 occurrences227–226 Mya — about 0.2 occurrences226–224 Mya — about 0.2 occurrences224–223 Mya — about 0.2 occurrences223–222 Mya — about 0.2 occurrences222–221 Mya — about 0.2 occurrences221–220 Mya — about 0.2 occurrences220–218 Mya — about 0.2 occurrences218–217 Mya — about 0.2 occurrences217–216 Mya — about 0.2 occurrences216–215 Mya — about 0.2 occurrences215–214 Mya — about 0.2 occurrences214–212 Mya — about 0.2 occurrences212–211 Mya — about 0.2 occurrences211–210 Mya — about 0.2 occurrences210–209 Mya — about 0.2 occurrences209–208 Mya — about 0.2 occurrences208–207 Mya — about 0.2 occurrences207–205 Mya — about 0.1 occurrences205–204 Mya — about 0.0 occurrences204–203 Mya — about 0.0 occurrences203–202 Mya — about 0.0 occurrences202–201 Mya — about 4 occurrences201–199 Mya — about 5 occurrences199–198 Mya — about 0.1 occurrences198–197 Mya — about 0.1 occurrences197–196 Mya — about 0.1 occurrences196–195 Mya — about 0.1 occurrences195–193 Mya — about 0.1 occurrences193–192 Mya — about 0.1 occurrences205.7 Mya – 201.4 Mya228 Mya192.2 Mya

12 occurrences of Acanthichnus 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

12 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

6 formations

Turners Falls — 42.61°N, 72.53°WSloan Canyon — 36.94°N, 103.15°WSloan Canyon — 36.89°N, 103.35°WTowaco — 40.82°N, 74.33°WPortland — 41.73°N, 72.66°WNugget Sandstone — 40.76°N, 108.89°WEast Berlin — 42.20°N, 72.64°W

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The named rock units Acanthichnus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Found in the same rock

117 taxa

The Paleobiology Database records 7 sites for Acanthichnus, 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

6 references

Each of the 12 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 Acanthichnus was found. Wikidata was searched and had none.

iDigBio and GBIF were not searched: the Paleobiology Database does not place Acanthichnus 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.

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

No 3D scan of Acanthichnus 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 itIchnofossils through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hitchcock 1858