Chosenia
No picture of Chosenia was found. iDigBio was searched and had none. Wikipedia and Wikidata have a picture filed under this name, but nothing tied it to Chosenia itself, so it was not used. 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 Chosenia, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- LeiostegiidaePBDB
- Diet
- carnivorePBDB, for Corynexochida
- Life habit
- nektobenthicPBDB, for Corynexochida
- Motility
- actively mobilePBDB, for Corynexochida
- Vision
- well-developedPBDB, for Leiostegiidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 12 million years on record.
Every occurrence read is dated to somewhere between 486.4 Mya and 474.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Chosenia 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
4 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
2 formations
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The named rock units Chosenia has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Chosenia and its relatives
OrdovicianWhere Chosenia and its relatives were recorded in the Ordovician.
Found in the same rock
12 taxa- Illaenus3 sites
- Kayseraspis3 sites
- Omuliovia2 sites
- Annamitella1 site
- Asaphellus trinodosus1 site
- Asaphopsis1 site
- Asaphopsoides florentinensis1 site
- Hystricurus robustus1 site
- Protopliomerops1 site
- Scotoharpes lauriei1 site
- Tasmanaspis lewisi1 site
- Tritoechia lewisi1 site
The Paleobiology Database records 4 sites for Chosenia, and this reads all of them. The number is how many of those sites it was catalogued from too.
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- Ordovician trilobites from north and northeastern China3
- Tremadoc trilobites from the Florentine Valley Formation, Tim Shea area, Tasmania1
Each of the 4 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 Chosenia was found. iDigBio was searched and had none.
Wikipedia and Wikidata have a picture filed under this name, but nothing tied it to Chosenia itself, so it was not used.
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 Chosenia, or no answer at all. This entry cannot say which.
No 3D scan of Chosenia 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 itLeiostegiidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Kobayashi 1934