Knoxiella infirma
No picture of Knoxiella infirma 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 Knoxiella infirma, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- KnoxiellaPBDB
- Diet
- suspension feederPBDB, for Palaeocopida
- Life habit
- epifaunalPBDB, for Palaeocopida
- Motility
- actively mobilePBDB, for Ostracoda
- Vision
- limitedPBDB, for Ostracoda
- Environment
- marinePBDB, for Ostracoda
Time the record covers
At least 29 million years on record.
The record covers at least 283.3 Mya to 254.14 Mya. No occurrence read is dated outside 290.1 Mya to 251.902 Mya.
16 occurrences of Knoxiella infirma 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
16 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
3 formations
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The named rock units Knoxiella infirma 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.
Knoxiella infirma and its relatives
PermianWhere Knoxiella infirma and its relatives were recorded in the Permian.
Found in the same rock
124 taxa- Samarella meishanella11 sites
- Basslerella annesophieae10 sites
- Microcheilinella shicheni10 sites
- Bairdia urodeloformis9 sites
- Baschkirina huzhouensis8 sites
- Bairdiacypris fornicata7 sites
- Bairdiacypris longirobusta7 sites
- Bairdiacypris sinensis7 sites
- Basslerella favosa7 sites
- Cyathus caperata7 sites
- Lobobairdia rostriformis7 sites
- Macrocypris menardensis7 sites
- Microcheilinella perexilis7 sites
- Petasobairdia bicornuta7 sites
- Bairdiacypris changxingensis6 sites
- Lobobairdia subsymmetrica6 sites
- Microcheilinella venusta6 sites
- Praepilatina texanus6 sites
- Bairdia crassa5 sites
- Bairdia deweveri5 sites
- Bairdia monstrabilis5 sites
- Bairdia paussi5 sites
- Bairdia wushunbaoi5 sites
- Bairdiacypris caeca5 sites
The Paleobiology Database records 16 sites for Knoxiella infirma, 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- The Changhsingian ostracodes from Meishan, Changxing, Zhejiang10
- Ostracods as markers of the Permian/Triassic boundary in the Khuff Formation of Saudi Arabia2
- A new ostracode fauna from the Permian - Triassic boundary in Turkey (Taurus, Antalya Nappes)2
- Ostracods (Crustacea) through the Permian-Triassic boundary in South China: the Meishan stratotype (Zhejiang Province)1
- Upper Paleozoic ostracodes of the Harper Ranch beds (south-central British Columbia, Canada)1
Each of the 16 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 Knoxiella infirma 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 Knoxiella infirma, or no answer at all. This entry cannot say which.
No 3D scan of Knoxiella infirma 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 itKnoxiella through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Shi 1982)