Marginifera (Arenaria) echinata

Yale Peabody Museum · 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
- Marginifera (Arenaria)PBDB
- Diet
- suspension feederPBDB, for Productidina
- Life habit
- low-level epifaunalPBDB, for Productidina
- Motility
- stationaryPBDB, for Productidina
- Vision
- blindPBDB, for Strophomenata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 7.1 million years on record.
Every occurrence read is dated to somewhere between 266.9 Mya and 259.857 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
21 occurrences of Marginifera (Arenaria) echinata 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
21 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
1 formation
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The named rock units Marginifera (Arenaria) echinata has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Marginifera (Arenaria) echinata and its relatives
PermianWhere Marginifera (Arenaria) echinata and its relatives were recorded in the Permian.
Found in the same rock
78 taxa- Cleiothyridina semiconcava7 sites
- Marginifera (Arenaria) excavata7 sites
- Marginifera (Arenaria) transversa7 sites
- Betaneospirifer marcoui6 sites
- Costiferina spiralis6 sites
- Martiniopsis subpentagonalis6 sites
- Echinalosia nodosa4 sites
- Licharewiella plicosa4 sites
- Pteroplecta niger4 sites
- Strophalosia (Heteralosia) tenuispina4 sites
- Acosarina minuta3 sites
- Athyris3 sites
- Cleiothyridina acutomarginalis3 sites
- Derbyia buriensis3 sites
- Fredericksolasma sublaevis3 sites
- Johncarteria devia3 sites
- Spiriferina3 sites
- Spirigerella3 sites
- Spirigerella numismalis3 sites
- Strophalosia (Heteralosia) sublamellata3 sites
- Taeniothaerus cotteri3 sites
- Aulosteges virilis2 sites
- Chonetes2 sites
- Derbyia2 sites
The Paleobiology Database records 18 sites for Marginifera (Arenaria) echinata, 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- Brachiopoda and Mollusca from the Productus limestones of the Salt Range15
- Structural adaptation in two Permian brachiopod genera, Salt Range, West Pakistan5
- Productus Limestone Fossils, Part IV, fas. 41
Each of the 21 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1

Picture of Marginifera (Arenaria) echinata
- Source
- GBIF
- Credit
- Yale Peabody Museum
- 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 itMarginifera (Arenaria) through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Waagen 1884)