Quadrocystis graffhami
No picture of Quadrocystis graffhami 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 Quadrocystis graffhami, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- QuadrocystisPBDB
- Diet
- suspension feederPBDB, for Rhombifera
- Life habit
- intermediate-level epifaunalPBDB, for Rhombifera
- Motility
- stationary, attachedPBDB, for Rhombifera
- Vision
- blindPBDB, for Rhombifera
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 900 thousand years on record.
The record covers at least 458.2 Mya to 457.3 Mya. No occurrence read is dated outside 471.3 Mya to 449.6 Mya.
3 occurrences of Quadrocystis graffhami on record, most of them in the Ordovician. 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
3 occurrences- Ordovician100%
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
- Bromide Formation · Simpson Group3
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The named rock units Quadrocystis graffhami has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Quadrocystis graffhami and its relatives
OrdovicianWhere Quadrocystis graffhami and its relatives were recorded in the Ordovician.
Found in the same rock
42 taxa- Acolocrinus3 sites
- Archaeocrinus3 sites
- Hybocrinus3 sites
- Peltacrinus3 sites
- Porocrinus3 sites
- Calceocrinus2 sites
- Cleiocrinus2 sites
- Cyathocystis2 sites
- Diabolocrinus2 sites
- Myeinocystites natus2 sites
- Pararchaeocrinus2 sites
- Penicillicrinus2 sites
- Pyrgocystis2 sites
- Tanaocystis2 sites
- Unibothriocidaris2 sites
- Urasterella2 sites
- <Rhodocrinid>1 site
- Abludoglyptocrinus1 site
- Anatiferocystis papillata1 site
- Anatifopsis1 site
- Anthracocrinus1 site
- Anthracocrinus primitivus1 site
- Anulocrinus1 site
- Bothriocidaris1 site
The Paleobiology Database records 3 sites for Quadrocystis graffhami, 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
3 referencesEach of the 3 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 Quadrocystis graffhami 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 Quadrocystis graffhami, or no answer at all. This entry cannot say which.
No 3D scan of Quadrocystis graffhami 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 itQuadrocystis through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Sprinkle 1982