Schwagerina

Searched as Schwagerina aculeata plena. The Paleobiology Database treats Schwagerina as the accepted name.

Schwagerina is an extinct genus of fusulinoidean Foraminifera that is used as an Early Permian index fossil. The overall shape of the shell or test is fusiform to subcylindrical, the spirotheca, or outer test wall, is thick, and composed of tectum and alveolar keriotheca; the septa are fluted throughout the length of the shell, intense to top of chambers in some, only in lower parts in others; axial fillings highly variable, chomata distinct or thin and discontinuous.

Schwagerina

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
SchwagerininaePBDB
Diet
omnivorePBDB, for Foraminifera
Life habit
semi-infaunalPBDB, for Foraminifera
Motility
stationaryPBDB, for Foraminifera
Environment
marinePBDB, for Fusulinoidea

Time the record covers

At most 13 million years on record.

Every occurrence read is dated to somewhere between 298.9 Mya and 286 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Carboniferous — about 0 of 8 occurrencesPermian — about 8 of 8 occurrencesPermian299–298 Mya — about 0.0 occurrences298–298 Mya — about 0.0 occurrences298–298 Mya — about 0.0 occurrences298–297 Mya — about 0.0 occurrences297–297 Mya — about 0.0 occurrences297–296 Mya — about 0.0 occurrences296–296 Mya — about 0.0 occurrences296–295 Mya — about 0.0 occurrences295–295 Mya — about 0.0 occurrences295–294 Mya — about 0.0 occurrences294–294 Mya — about 0.0 occurrences294–293 Mya — about 0.3 occurrences293–293 Mya — about 1.0 occurrences293–292 Mya — about 1.0 occurrences292–292 Mya — about 1.0 occurrences292–292 Mya — about 1.0 occurrences292–291 Mya — about 1.0 occurrences291–291 Mya — about 1.0 occurrences291–290 Mya — about 1.0 occurrences290–290 Mya — about 0.1 occurrences290–289 Mya — about 0.0 occurrences289–289 Mya — about 0.0 occurrences289–288 Mya — about 0.0 occurrences288–288 Mya — about 0.0 occurrences288–287 Mya — about 0.0 occurrences287–287 Mya — about 0.0 occurrences287–286 Mya — about 0.0 occurrences286–286 Mya — about 0.0 occurrences299.4 Mya285.5 Mya

8 occurrences of Schwagerina 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

8 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

1 formation

Bird Spring — 34.51°N, 115.42°WBird Spring — 34.97°N, 115.54°WBird Spring — 35.13°N, 115.99°W

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The named rock units Schwagerina has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Schwagerina and its relatives

Permian

Where Schwagerina and its relatives were recorded in the Permian.

Found in the same rock

388 taxa

The Paleobiology Database records 329 sites for Schwagerina, and this reads 240 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

1 reference

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. 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 Schwagerina

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

No 3D scan of Schwagerina was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itSchwagerininae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Moeller 1877