Achistrum gamma
No picture of Achistrum gamma was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 gamma, 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 194 million years on record.
The record covers at least 351.9 Mya to 157.9 Mya. No occurrence read is dated outside 358.86 Mya to 154.8 Mya.
11 occurrences of Achistrum gamma 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
11 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
7 formations
- Hazelbury Bryan Formation · Corallian Group2
- Lodgepole limestone Formation · Madison Group1
- Allan Mountain limestone Formation · Madison Group1
- Chouteau limestone Formation · Chouteau Group1
- Compton limestone Formation · Chouteau Group1
- Ampthill Clay Formation1
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The named rock units Achistrum gamma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Achistrum gamma and its relatives
CarboniferousWhere Achistrum gamma and its relatives were recorded in the Carboniferous.
Found in the same rock
85 taxa- Achistrum monochordata9 sites
- Achistrum issleri4 sites
- Langepis campbelli4 sites
- Protocaudina botoni4 sites
- Achistrum coloculum3 sites
- Clavallus spicaudina3 sites
- Eocaudina subhexagona3 sites
- Rota martini3 sites
- Theelia convexa3 sites
- Cucumarites robustus2 sites
- Paracucumarites similis2 sites
- Priscopedatus jaworznicensis2 sites
- Priscopedatus octoperforatus2 sites
- Stueria malmensis2 sites
- Thuroholia spicatus2 sites
- Achistrum (Cancellrum) pilgrimi1 site
- Achistrum (Cancellrum) trichordata1 site
- Advenaster1 site
- Aequispirella jurassica1 site
- Astandes conspicuus1 site
- Astandes kostromensis1 site
- Bandellina miniperforata1 site
- Benthopectinidae1 site
- Bralitzia acuminata1 site
The Paleobiology Database records 11 sites for Achistrum gamma, 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
5 references- Kinderhook (Mississippian) holothurian sclerites from Montana and Missouri4
- Some Holothurian sclerites from the Corallian Group of north Dorset3
- Holothurian sclerites from the Polish Jurassic and Tertiary2
- Some holothurian sclerites from the Polish Jurassic1
- Some holothurian spicules from the Ampthill Clay of Melton, near Hull (Yorkshire)1
Each of the 11 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 Achistrum gamma was found. Wikipedia, Wikidata and iDigBio were searched and had none.
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 gamma, or no answer at all. This entry cannot say which.
No 3D scan of Achistrum gamma 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. (Hodson et al. 1956)