Onniella trigona
No picture of Onniella trigona 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 Onniella trigona, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- OnniellaPBDB
- Diet
- suspension feederPBDB, for Onniella
- Life habit
- epifaunalPBDB, for Onniella
- Motility
- stationary, attachedPBDB, for Onniella
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 18 million years on record.
The record covers at least 449.5 Mya to 431.2 Mya. No occurrence read is dated outside 449.9 Mya to 428.6 Mya.
36 occurrences of Onniella trigona on record, most of them in the Silurian. 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
36 occurrences- Ordovician8%
- Silurian92%
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
8 formations
- Õhne Formation10
- Varbola Formation2
- Raikküla Formation2
- Taucionys Formation1
- Tudulinna Formation1
- Jaani Formation1
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The named rock units Onniella trigona has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 occurrences have no formation on record, which is common for older literature.
Onniella trigona and its relatives
SilurianWhere Onniella trigona and its relatives were recorded in the Silurian.
Found in the same rock
57 taxa- Mendacella circularis13 sites
- Leangella (Leangella) scissa12 sites
- Dalmanella cyclica9 sites
- Hesperorthis hillistensis7 sites
- Skenidioides hymiri6 sites
- Coolinia applanata5 sites
- Eostropheodonta delicata5 sites
- Glyptorthis irrupta4 sites
- Borealis borealis3 sites
- Clorilamnulella undata3 sites
- Dicoelosia osloensis3 sites
- Eoplectodonta (Eoplectodonta) penkillensis3 sites
- Eoplectodonta (Ygerodiscus) bella3 sites
- Epitomyonia glypha3 sites
- Katastrophomena (Katastrophomena) woodlandensis3 sites
- Leptaena (Leptaena) haverfordensis3 sites
- Skenidioides scoliodus3 sites
- Eoplectodonta (Eoplectodonta) exceptionis2 sites
- Isorthis2 sites
- Isorthis mediocra2 sites
- Isorthis parvulus2 sites
- Saukrodictya2 sites
- Skenidioides2 sites
- Skenidioides acutum2 sites
The Paleobiology Database records 36 sites for Onniella trigona, 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- Silurian brachiopods Dictyonellida, Strophomenida, Productida, Orthotetida, Protorthida and Orthida from Estonia33
- Review of the Ordovician rhynchonelliformean Brachiopoda of the East Baltic: Their distribution and biofacies1
- The Taucionys Formation (Holorhynchus beds) in the Iljinskoje boring (Pskov district)1
- Ordovician brachiopods Enteletacea of the east baltic area1
Each of the 36 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 Onniella trigona 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 Onniella trigona, or no answer at all. This entry cannot say which.
No 3D scan of Onniella trigona 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 itOnniella through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Rubel 1962