Placoparina
No picture of Placoparina was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Placoparina, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- CheiruridaePBDB
- Diet
- carnivorePBDB, for Cheiruridae
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 8.3 million years on record.
The record covers at least 461.1 Mya to 452.8 Mya. No occurrence read is dated outside 468 Mya to 445.2 Mya.
5 occurrences of Placoparina 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
5 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
3 formations
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The named rock units Placoparina 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.
Placoparina and its relatives
OrdovicianWhere Placoparina and its relatives were recorded in the Ordovician.
Found in the same rock
35 taxa- Ampyx3 sites
- Cyclopyge3 sites
- Birmanites2 sites
- Dicranograptus2 sites
- Discoceras2 sites
- Illaenus2 sites
- Lonchodomas2 sites
- Remopleurides2 sites
- Tropidodiscus2 sites
- Vogdesia2 sites
- Acrograptus1 site
- Barrandia1 site
- Basilicus (Basiliella)1 site
- Calymenesun tingi1 site
- Catazyga1 site
- Corrugatagnostus1 site
- Cycloceras1 site
- Dicranopeltis1 site
- Didymograptus1 site
- Dionide1 site
- Ectillaenus1 site
- Ellipsotaphrus1 site
- Gastropolus1 site
- Microparia1 site
The Paleobiology Database records 5 sites for Placoparina, 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- Regional stratigraphic tables of the north western China region: Volume of NinXia Province2
- Early Ordovician (Arenig) stratigraphy and faunas of the Carmarthen District, southwest Wales1
- Трилобиты1
- The Ordovician trilobite faunas of the Builth-Llandrindod Inlier, central Wales. Part I1
Each of the 5 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 Placoparina was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Placoparina, or no answer at all. This entry cannot say which.
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCheiruridae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Whittard 1940