Streptacis

Streptacis

Beede, J. W. · CC BY 4.0 · 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
StreptacididaePBDB
Life habit
epifaunalPBDB, for Gastropoda
Motility
actively mobilePBDB, for Gastropoda
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 246 million years on record.

The record covers at least 330.3 Mya to 83.6 Mya. No occurrence read is dated outside 346.7 Mya to 72.2 Mya.

Carboniferous — about 13 of 57 occurrencesCarboniferousPermian — about 41 of 57 occurrencesPermianEarly Triassic — about 2 of 57 occurrencesMiddle Triassic — about 0 of 57 occurrencesLate Triassic — about 0 of 57 occurrencesEarly Jurassic — about 0 of 57 occurrencesMiddle Jurassic — about 0 of 57 occurrencesLate Jurassic — about 0 of 57 occurrencesEarly Cretaceous — about 0 of 57 occurrencesLate Cretaceous — about 1 of 57 occurrencesLate Cretaceous352–343 Mya — about 0.2 occurrences343–333 Mya — about 0.6 occurrences333–324 Mya — about 0.2 occurrences324–314 Mya — about 2 occurrences314–305 Mya — about 9 occurrences305–295 Mya — about 2 occurrences295–286 Mya — about 3 occurrences286–276 Mya — about 3 occurrences276–267 Mya — about 8 occurrences267–257 Mya — about 14 occurrences257–248 Mya — about 14 occurrences86–76 Mya — about 0.6 occurrences76–67 Mya — about 0.4 occurrences330.3 Mya83.6 Mya352 Mya67 Mya

57 occurrences of Streptacis 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

57 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

25 formations

Heshan — 23.82°N, 108.87°EEpiskopi — 37.31°N, 23.42°EEpiskopi — 37.33°N, 23.46°EFlechado — 36.34°N, 105.60°WFlechado — 36.41°N, 105.57°WRustler — 31.60°N, 104.23°WRustler — 31.66°N, 104.16°WAppanoose — 38.70°N, 90.39°WIchinotani — 36.22°N, 137.53°EDaye — 29.17°N, 117.35°EHueco — 31.85°N, 105.97°WHueco — 31.79°N, 105.91°WAkasaka — 35.39°N, 136.58°EVerkhnii Uslon — 55.36°N, 49.09°EKamyshla — 54.11°N, 52.15°EKamyshla — 54.11°N, 52.27°ECoffee Sand — 34.26°N, 88.70°WMerlewood — 30.98°S, 150.51°EChanghsing — 27.75°N, 100.66°EChangxing — 29.17°N, 117.35°EH. S. Lee — 4.30°N, 101.15°EBird Spring — 36.50°N, 115.58°WMagdalena Limestone — 31.84°N, 106.04°WCutoff — 31.99°N, 104.92°WWhitehorse — 34.64°N, 100.53°WGrindstone Creek — 32.71°N, 98.08°WTak Fa — 15.32°N, 100.43°ERat Buri — 13.53°N, 99.70°EKhao Khad — 14.79°N, 100.88°E

Loading coastlines…

The named rock units Streptacis has been recovered from, largest first. Drawn where the rock is now, not where it formed. One further formation holds fewer occurrences and is not listed. 9 occurrences have no formation on record, which is common for older literature.

Streptacis and its relatives

Permian

Where Streptacis and its relatives were recorded in the Permian.

Found in the same rock

1,015 taxa

The Paleobiology Database records 44 sites for Streptacis, 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

26 references

Each of the 57 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. 14 further references are not listed. 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 Streptacis

Source
GBIF
Credit
Beede, J. W.
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Streptacis 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 itStreptacididae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Meek 1871