Composita emarginata

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
- CompositaPBDB
- Diet
- suspension feederPBDB, for Athyrididina
- Life habit
- low-level epifaunalPBDB, for Athyrididina
- Motility
- stationaryPBDB, for Athyrididina
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 7 million years on record.
The record covers at least 266.9 Mya to 259.857 Mya. No occurrence read is dated outside 274.4 Mya to 254.14 Mya.
40 occurrences of Composita emarginata on record, most of them in the Permian. 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
40 occurrences- Permian100%
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
5 formations
- Bell Canyon Formation19
- Capitan Formation15
- Word Formation2
- Palo Quemado Formation2
- Brushy Canyon Formation1
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The named rock units Composita emarginata 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.
Composita emarginata and its relatives
PermianWhere Composita emarginata and its relatives were recorded in the Permian.
Found in the same rock
296 taxa- Thamnosia capitanensis22 sites
- Anteridocus swallovianus19 sites
- Derbyia19 sites
- Hustedia rupinata16 sites
- Paraspiriferina billingsi15 sites
- Tautosia shumardiana15 sites
- Reticulariina14 sites
- Thedusia trigonalis14 sites
- Dielasma sulcatum13 sites
- Sestropoma cribriferum13 sites
- Bamberina annectens12 sites
- Dielasma12 sites
- Heterelasma shumardianum12 sites
- Micraphelia scitula12 sites
- Plectelasma guadalupense12 sites
- Tautosia elegans12 sites
- Arionthia lamaria11 sites
- Bryorhynchus bisulcatum11 sites
- Paraspiriferina sapinea11 sites
- Scapharina levis11 sites
- Crenispirifer jubatus10 sites
- Dyoros (Dyoros) intrepidus10 sites
- Fascicosta longaeva10 sites
- Sarganostega transversalis10 sites
The Paleobiology Database records 39 sites for Composita emarginata, 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- Permian Brachiopods of West Texas, VI29
- The Guadalupian fauna6
- The Geology of the Glass Mountains, Texas, Part II, Faunal summary and correlation of the Permian formations with description of Brachiopoda4
- Brachiopoda1
Each of the 40 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 content1

Picture of Composita emarginata
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Composita emarginata 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 itComposita through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Girty 1909)