Achistrum triassicum
No picture of Achistrum triassicum was found. Wikidata and iDigBio were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Achistrum triassicum 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 triassicum, 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 114 million years on record.
The record covers at least 351.9 Mya to 237 Mya. No occurrence read is dated outside 358.86 Mya to 233.6 Mya.
6 occurrences of Achistrum triassicum on record, most of them in the Middle Triassic. 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
6 occurrencesThese 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
- Rockford Limestone Formation1
- Sina Formation · Aghdarband Group1
- Füred Formation1
- Väszoly Formation1
- Buchenstein Formation1
- Korytnica Limestones Formation1
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The named rock units Achistrum triassicum has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Achistrum triassicum and its relatives
Middle TriassicWhere Achistrum triassicum and its relatives were recorded in the Middle Triassic.
Found in the same rock
188 taxa- Enantiognathus4 sites
- Eocaudina cassianensis4 sites
- Gondolella navicula4 sites
- Neospathodus4 sites
- Theelia immissorbicula4 sites
- Achistrum monochordata3 sites
- Ammobaculites3 sites
- Ammodiscus3 sites
- Astacolus3 sites
- Chirodella3 sites
- Cornudina3 sites
- Cratognathodus multihamatus3 sites
- Cypridodella spengleri3 sites
- Daonella3 sites
- Dentalina3 sites
- Didymodella alternata3 sites
- Echinoidea3 sites
- Eocaudina marginata3 sites
- Gladiogondolella tethydis3 sites
- Glomospira3 sites
- Hibbardella3 sites
- Hibbardella (Diplododella)3 sites
- Lenticulina3 sites
- Lituotuba3 sites
The Paleobiology Database records 6 sites for Achistrum triassicum, 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- Holothurien-Sklerite und Conodonten aus der Mittel- und Obertrias von Köveskál (Balatonhochland, Ungarn)3
- Echinoderms from the Middle Triassic Sina Formation (Aghdarband Group) in NE Iran1
- Triassic microfossils from the Korytnica limestones at Liptovska (Slovakia, CSSR) and their stratigraphic significance1
- Lower Mississippian holothurian sclerites from the Rockford Limestone of northern Indiana1
Each of the 6 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 triassicum was found. Wikidata and iDigBio were searched and had none.
Wikipedia has a picture filed under this name, but nothing tied it to Achistrum triassicum 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 triassicum, or no answer at all. This entry cannot say which.
No 3D scan of Achistrum triassicum 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 Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Frizzell and Exline 1955)