Composita laevis
Collector(s): Leigh Margaret Fall · CC0 · via GBIF. 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 most 60 million years on record.
Every occurrence read is dated to somewhere between 358.86 Mya and 298.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
8 occurrences of Composita laevis on record, most of them in the Carboniferous. 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
8 occurrences- Carboniferous100%
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
Loading coastlines…
The named rock units Composita laevis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Composita laevis and its relatives
CarboniferousWhere Composita laevis and its relatives were recorded in the Carboniferous.
Found in the same rock
100 taxa- Eumetria4 sites
- Productus (Diaphragmus) fasciculatus4 sites
- Spirifer4 sites
- Anthracospirifer leidyi3 sites
- Buxtonia3 sites
- Cliothyridina sublamellosa3 sites
- Echinoconchus rodeoensis3 sites
- Girtyella3 sites
- Griffithides3 sites
- Linoproductus3 sites
- Linoproductus ovatus3 sites
- Orthotetes kaskaskiensis3 sites
- Productus3 sites
- Rectifenestella tenax3 sites
- Anthracospirifer curvilateralis2 sites
- Archimedes2 sites
- Clionolithes2 sites
- Coledium explanatum2 sites
- Composita sulcata2 sites
- Composita trinuclea2 sites
- Dictyoclostus inflatus2 sites
- Dielasma2 sites
- Echinoconchus elegans2 sites
- Fenestella2 sites
The Paleobiology Database records 8 sites for Composita laevis, 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
3 references- Carboniferous formations and faunas of central Montana4
- The Paradise Formation and its fauna3
- Stratigraphy and geologic history of the Amsden Formation (Mississippian and Pennsylvanian) of Wyoming1
Each of the 8 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 laevis
- Source
- GBIF
- Credit
- Collector(s): Leigh Margaret Fall
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
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 CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Weller 1914