Dielasma prolongatum

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
- DielasmaPBDB
- Diet
- suspension feederPBDB, for Terebratulida
- Life habit
- low-level epifaunalPBDB, for Terebratulida
- Motility
- stationaryPBDB, for Terebratulida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 15 million years on record.
Every occurrence read is dated to somewhere between 274.4 Mya and 259.857 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
11 occurrences of Dielasma prolongatum 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
11 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
4 formations
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The named rock units Dielasma prolongatum has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Dielasma prolongatum and its relatives
PermianWhere Dielasma prolongatum and its relatives were recorded in the Permian.
Found in the same rock
108 taxa- Anteridocus swallovianus7 sites
- Liosotella popei7 sites
- Paraspiriferina billingsi6 sites
- Composita affinis5 sites
- Tautosia shumardiana5 sites
- Paraspiriferina evax4 sites
- Strigirhynchia transversa4 sites
- Aequalicosta inflata3 sites
- Aequalicosta shumardi3 sites
- Anisopyge perannulata3 sites
- Composita emarginata3 sites
- Heterelasma shumardianum3 sites
- Hustedia opsia3 sites
- Hustedia rupinata3 sites
- Scapharina levis3 sites
- Strigirhynchia indentata3 sites
- Thamnosia capitanensis3 sites
- Cartorhium mexicanum2 sites
- Derbyia2 sites
- Heterelasma venustulum2 sites
- Plectelasma guadalupense2 sites
- Pleurelasma costatum2 sites
- Reticulariina2 sites
- Scapharina rugosa2 sites
The Paleobiology Database records 11 sites for Dielasma prolongatum, 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 referencesEach of the 11 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

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