Compsonema
No picture of Compsonema was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Compsonema, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PlatyceratidaePBDB
- Diet
- coprophagePBDB, for Platyceratidae
- Life habit
- epifaunalPBDB, for Platyceratidae
- Motility
- passively mobile, epibiontPBDB, for Platyceratidae
- Vision
- limitedPBDB, for Gastropoda
- Environment
- marinePBDB, for Platyceratidae
Time the record covers
At most 12 million years on record.
Every occurrence read is dated to somewhere between 335.4 Mya and 323.4 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Compsonema 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
2 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
2 formations
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The named rock units Compsonema has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Compsonema and its relatives
CarboniferousWhere Compsonema and its relatives were recorded in the Carboniferous.
Found in the same rock
36 taxa- "Anomphalomorpha" sp.1 site
- "Janthimorpha" sp.1 site
- Aclisina1 site
- Ammonoidea1 site
- Amphiscapha intermedius1 site
- Anozyga arkansasensis1 site
- Bacrtites <sp. A>1 site
- Bactrites <sp. B>1 site
- Bactrites <sp. C>1 site
- Caneyella richardsoni1 site
- Cavusgnathus1 site
- Euphemites1 site
- Euphemites nevadensis1 site
- Foraminifera1 site
- Girtyoceras1 site
- Glabrocingulum (Ananias) seminudum1 site
- Glabrocingulum quadrigatum1 site
- Gnathodus texanus1 site
- Imogloba1 site
- Microdoma1 site
- Mourlonia1 site
- Naticopsis1 site
- Nautiloidea1 site
- Neilsonia welleri1 site
The Paleobiology Database records 2 sites for Compsonema, 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
2 references- Larval and juvenile gastropods from a Carboniferous black shale: palaeoecology and implications for the evolution of the Gastropoda1
- A gastropod fauna from the Cravenoceras hesperium ammonoid zone (Upper Mississippian) in east-central Nevada1
Each of the 2 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 Compsonema was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Compsonema, or no answer at all. This entry cannot say which.
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 itPlatyceratidae through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Gordon and Yochelson 1983