Kjaerina poljiensis
No picture of Kjaerina poljiensis 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 Kjaerina poljiensis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- KjaerinaPBDB
- Diet
- suspension feederPBDB, for Rafinesquinidae
- Life habit
- epifaunalPBDB, for Rafinesquinidae
- Motility
- stationaryPBDB, for Rafinesquinidae
- Vision
- blindPBDB, for Strophomenata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 2.1 million years on record.
Every occurrence read is dated to somewhere between 453.9 Mya and 451.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Kjaerina poljiensis 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
4 formations
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The named rock units Kjaerina poljiensis 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.
Kjaerina poljiensis and its relatives
OrdovicianWhere Kjaerina poljiensis and its relatives were recorded in the Ordovician.
Found in the same rock
58 taxa- Horderleyella kegelensis4 sites
- Sowerbyella (Sowerbyella) forumi4 sites
- Longvillia asmusi3 sites
- Onniella3 sites
- Sowerbyella (Sowerbyella) oepiki3 sites
- Boreadorthis2 sites
- Hedstroemina orvikui2 sites
- Hesperorthis rae2 sites
- Leptaena (Leptaena) rugosoides2 sites
- Neoplatystrophia lynx2 sites
- Nicolella2 sites
- Onniella longa2 sites
- Platystrophia crassoplicata2 sites
- Sampo2 sites
- Vellamo2 sites
- Ahla1 site
- Anazyga1 site
- Asperellacystis asperellus1 site
- Asperellacystis plicatus1 site
- Bollina rakverensis1 site
- Circulina nuda1 site
- Climacograptus1 site
- Clinambon anomalus1 site
- Conolichas1 site
The Paleobiology Database records 5 sites for Kjaerina poljiensis, 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- The geology of the Baltic Republics2
- Legend of the Central European series of sheets of the State Geological Map of the Russian Federation, scale 1:1,000,000 (third generation)1
- The Stratigraphy and Structure of Ordovician Rocks of the South - East Part of the Baltic Basin (Druksiu Area)1
- Lithology and Fauna of the Caradoc series type sections in North Estonia1
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 Kjaerina poljiensis 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 Kjaerina poljiensis, or no answer at all. This entry cannot say which.
No 3D scan of Kjaerina poljiensis was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itKjaerina through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Alichova 1951)