Achistrum ludwigi

No picture of Achistrum ludwigi was found. Wikidata and iDigBio were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Achistrum ludwigi itself, so it was not used. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Achistrum ludwigi, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
AchistrumPBDB
Diet
detritivorePBDB, for Apodida
Life habit
epifaunalPBDB, for Apodida
Motility
actively mobilePBDB, for Apodida
Vision
blindPBDB, for Holothuroidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 104 million years on record.

The record covers at least 351.9 Mya to 247 Mya. No occurrence read is dated outside 358.86 Mya to 241.464 Mya.

Devonian — about 0 of 4 occurrencesCarboniferous — about 3 of 4 occurrencesCarboniferousPermian — about 0 of 4 occurrencesEarly Triassic — about 0 of 4 occurrencesMiddle Triassic — about 1 of 4 occurrences361–357 Mya — about 0.2 occurrences357–353 Mya — about 0.6 occurrences353–349 Mya — about 0.2 occurrences316–312 Mya — about 0.3 occurrences312–308 Mya — about 0.5 occurrences308–304 Mya — about 0.9 occurrences304–300 Mya — about 0.2 occurrences247–243 Mya — about 0.7 occurrences243–239 Mya — about 0.3 occurrences351.9 Mya247 Mya361 Mya239 Mya

4 occurrences of Achistrum ludwigi on record, most of them in the Carboniferous. 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

4 formations

Rockford Limestone — 40.83°N, 87.25°WGraford — 33.20°N, 97.75°WBreathitt — 37.63°N, 82.64°WFurkaska — 49.27°N, 19.81°E

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

Achistrum ludwigi and its relatives

Carboniferous

Where Achistrum ludwigi and its relatives were recorded in the Carboniferous.

Found in the same rock

53 taxa

The Paleobiology Database records 4 sites for Achistrum ludwigi, 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

4 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content0

No picture of Achistrum ludwigi was found. Wikidata and iDigBio were searched and had none.

Wikipedia has a picture filed under this name, but nothing tied it to Achistrum ludwigi itself, so it was not used.

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

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Achistrum ludwigi, or no answer at all. This entry cannot say which.

No 3D scan of Achistrum ludwigi 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 itAchistrum through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Croneis and McCormack 1932)