Dielasma truncatum

Dielasma truncatum

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 least 20 million years on record.

The record covers at least 274.4 Mya to 254.14 Mya. No occurrence read is dated outside 298.9 Mya to 251.902 Mya.

Carboniferous — about 0 of 11 occurrencesPermian — about 11 of 11 occurrencesPermianEarly Triassic — about 0 of 11 occurrences300–298 Mya — about 0.0 occurrences298–297 Mya — about 0.1 occurrences297–295 Mya — about 0.1 occurrences295–293 Mya — about 0.1 occurrences293–292 Mya — about 0.1 occurrences292–290 Mya — about 0.1 occurrences290–288 Mya — about 0.1 occurrences288–287 Mya — about 0.1 occurrences287–285 Mya — about 0.1 occurrences285–284 Mya — about 0.1 occurrences284–282 Mya — about 0.2 occurrences282–280 Mya — about 0.3 occurrences280–279 Mya — about 0.3 occurrences279–277 Mya — about 0.3 occurrences277–275 Mya — about 0.3 occurrences275–274 Mya — about 0.2 occurrences267–266 Mya — about 2 occurrences266–264 Mya — about 2 occurrences264–262 Mya — about 1 occurrence262–261 Mya — about 1 occurrence261–259 Mya — about 0.8 occurrences254–253 Mya — about 0.7 occurrences253–251 Mya — about 0.3 occurrences274.4 Mya254.14 Mya299.8 Mya251 Mya

11 occurrences of Dielasma truncatum 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

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

Amb — 32.51°N, 71.93°EAmb — 32.63°N, 71.75°EZhesi — 42.67°N, 110.46°EZhesi — 42.65°N, 110.47°EWargal — 32.57°N, 72.41°ECoyote Butte — 43.98°N, 119.75°WXiala — 31.57°N, 84.55°E

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The named rock units Dielasma truncatum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Dielasma truncatum and its relatives

Permian

Where Dielasma truncatum and its relatives were recorded in the Permian.

Found in the same rock

187 taxa

The Paleobiology Database records 11 sites for Dielasma truncatum, 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

6 references

Each 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. 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 Dielasma truncatum

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Dielasma truncatum 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. Waagen 1882