Schizotreta

via iDigBio · CC0 · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- DiscinidaePBDB
- Diet
- suspension feederPBDB, for Lingulida
- Life habit
- low-level epifaunalPBDB, for Lingulida
- Motility
- stationary, attachedPBDB, for Lingulida
- Vision
- blindPBDB, for Lingulata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 75 million years on record.
The record covers at least 475.3 Mya to 399.5 Mya. No occurrence read is dated outside 481.7 Mya to 387.95 Mya.
99 occurrences of Schizotreta 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
99 occurrences- Ordovician75%
- Silurian22%
- Devonian3%
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
50 formations
- Valhallfonna Formation11
- Jonstorp Formation9
- Ffairfach Flags and Grits Formation · Ffairfach Group4
- Cobra Formation · Taralga Group4
- Meadowtown Beds Formation3
- Rorrington Beds Formation3
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The named rock units Schizotreta has been recovered from, largest first. Drawn where the rock is now, not where it formed. 26 further formations hold fewer occurrences each and are not listed. 10 occurrences have no formation on record, which is common for older literature.
Schizotreta and its relatives
OrdovicianWhere Schizotreta and its relatives were recorded in the Ordovician.
Found in the same rock
1,145 taxa- Paterula14 sites
- Scaphelasma scutula11 sites
- Acanthambonia portranensis10 sites
- Atrypa10 sites
- Eoconulus semiregularis10 sites
- Rhinotreta laeta10 sites
- Bryozoa9 sites
- Crinoidea9 sites
- Lingulella9 sites
- Schizocrania9 sites
- Leptaena8 sites
- Opsiconidion praecursor8 sites
- Trilobita8 sites
- Rowellella minuta7 sites
- Skenidioides7 sites
- Spondylotreta parva7 sites
- Whitfieldella7 sites
- Biernatia6 sites
- Bivalvia6 sites
- Craniops6 sites
- Cyrtia6 sites
- Gastropoda6 sites
- Gelidorthis6 sites
- Hisingerella6 sites
The Paleobiology Database records 90 sites for Schizotreta, 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
39 references- Taxonomy and biostratigraphy of Ordovician brachiopods from northeastern Ny Friesland, Spitsbergen13
- Late Ordovician lingulate brachiopods from Estonia10
- Ordovician Brachiopoda from the Shelve District, Shropshire9
- Distribution of Middle to Late Ordovician lingulate brachiopods in New South Wales5
- Benthic palaeocommunities represented in the Ffairfach Group and coeval Ordovician successions of Wales5
- The Barr and lower Ardmillan series (Caradoc) of the Girvan District, south-west Ayrshire, with descriptions of the Brachiopoda5
- Silurian Linguliformean Brachiopods and Conodonts from the Cobra Formation, Southeastern New South Wales, Australia4
- Early Llandovery brachiopods of Wales4
- Inarticulate brachiopods around the Middle-Upper Ordovician boundary in Västergötland4
- Silurian and Lochkovian communities in the Prague basin (Barrandian area, Czech Republic)3
- Chazyan and related brachiopods3
- Upper Ordovician brachiopods from the Anderken Formation, Kazakhstan: their ecology and systematics2
Each of the 99 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. 27 further references are not listed. 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 content1

Picture of Schizotreta
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Schizotreta 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 itDiscinidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Kutorga 1848