Derbyia
Searched as Derbyia hemisphaerica radiata. The Paleobiology Database treats Derbyia as the accepted name.
No picture of Derbyia 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 Derbyia, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- DerbyiidaePBDB
- Diet
- suspension feederPBDB, for Brachiopoda
- Life habit
- low-level epifaunalPBDB, for Brachiopoda
- Motility
- stationary, attachedPBDB, for Brachiopoda
- Vision
- blindPBDB, for Strophomenata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 8 million years on record.
Every occurrence read is dated to somewhere between 259.857 Mya and 251.902 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Derbyia on record, most of them in the Permian. 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 occurrences- Permian100%
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
2 formations
Loading coastlines…
The named rock units Derbyia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Derbyia and its relatives
PermianWhere Derbyia and its relatives were recorded in the Permian.
Found in the same rock
385 taxa- Neochonetes granulifer115 sites
- Composita subtilita83 sites
- Crinoidea79 sites
- Reticulatia huecoensis66 sites
- Hystriculina wabashensis63 sites
- Neospirifer dunbari61 sites
- Parajuresania nebrascensis51 sites
- Punctospirifer kentuckensis48 sites
- Trepostomata46 sites
- Hustedia mormoni44 sites
- Meekella39 sites
- Crurithyris38 sites
- Crurithyris expansa38 sites
- Linoproductus prattenianus32 sites
- Linoproductus29 sites
- Composita28 sites
- Bryozoa25 sites
- Linipalus magnispinus25 sites
- Fusulinidae24 sites
- Rhombopora23 sites
- Echinoidea22 sites
- Lissochonetes geronticus22 sites
- Neospirifer22 sites
- Aviculopecten21 sites
The Paleobiology Database records 1,399 sites for Derbyia, and this reads 240 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
2 references- Brachiopoda and Mollusca from the Productus limestones of the Salt Range5
- Brachiopod fossils from the Permian Maizuru Group1
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 content1
3D model
- Source
- Sketchfab
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
No picture of Derbyia 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 Derbyia, or no answer at all. This entry cannot say which.
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 itDerbyiidae through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Waagen 1884