Roundyella

Roundyella is an extinct genus of ostracod belonging to the order Leperditellocopida and family Scrobiculidae. Specimens have been found in beds of Devonian to Triassic age in Australia, Asia, Europe, North America, and South America.

Roundyella

N.W. Shupe · Public Domain · via Wikipedia/Commons. 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
ScrobiculidaePBDB
Diet
suspension feederPBDB, for Palaeocopida
Life habit
epifaunalPBDB, for Palaeocopida
Motility
actively mobilePBDB, for Ostracoda
Vision
limitedPBDB, for Ostracoda
Environment
marinePBDB, for Ostracoda

Time the record covers

At least 133 million years on record.

The record covers at least 385.9 Mya to 251.902 Mya. No occurrence read is dated outside 387.95 Mya to 251.1 Mya.

Devonian — about 4 of 109 occurrencesDevonianCarboniferous — about 14 of 109 occurrencesCarboniferousPermian — about 90 of 109 occurrencesPermianEarly Triassic — about 1 of 109 occurrences391–386 Mya — about 2 occurrences386–381 Mya — about 1 occurrence381–376 Mya — about 0.5 occurrences376–372 Mya — about 0.4 occurrences362–357 Mya — about 0.2 occurrences357–353 Mya — about 0.7 occurrences353–348 Mya — about 0.6 occurrences348–343 Mya — about 0.5 occurrences343–339 Mya — about 1 occurrence339–334 Mya — about 1.0 occurrences334–329 Mya — about 0.6 occurrences329–324 Mya — about 1 occurrence324–320 Mya — about 1 occurrence320–315 Mya — about 0.4 occurrences315–310 Mya — about 1 occurrence310–305 Mya — about 1 occurrence305–301 Mya — about 3 occurrences301–296 Mya — about 2 occurrences296–291 Mya — about 23 occurrences291–286 Mya — about 12 occurrences286–282 Mya — about 4 occurrences282–277 Mya — about 5 occurrences277–272 Mya — about 3 occurrences267–263 Mya — about 4 occurrences263–258 Mya — about 12 occurrences258–253 Mya — about 19 occurrences253–248 Mya — about 9 occurrences385.9 Mya251.902 Mya391 Mya248 Mya

109 occurrences of Roundyella 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

109 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

32 formations

Holmwood — 28.94°S, 115.54°EChangxing — 25.73°N, 117.74°EQixia — 26.09°N, 117.83°EQixia — 31.95°N, 119.16°EQixia — 30.64°N, 110.75°EJulfa — 38.73°N, 45.58°EMaokou — 32.62°N, 105.86°EElmdale — 38.37°N, 96.62°WElmdale — 39.17°N, 96.54°WNaujoji Akmené — 54.55°N, 22.80°ENaujoji Akmené — 54.67°N, 24.25°ENaujoji Akmené — 54.42°N, 22.78°EFayetteville — 36.19°N, 94.09°WFayetteville — 36.08°N, 94.13°WFayetteville — 36.00°N, 94.01°WArqov — 31.97°N, 34.87°EArqov — 31.26°N, 35.27°EArqov — 30.99°N, 35.20°EKapp Starostin — 77.01°N, 16.21°EKapp Starostin — 77.56°N, 15.03°EWreford — 39.08°N, 96.78°WWreford — 38.37°N, 96.59°WWinfield — 37.68°N, 97.01°WWinfield — 38.42°N, 96.82°WNagyvisnyo — 48.14°N, 20.43°ENagyvisnyo — 48.15°N, 20.44°EHenrietta — 38.63°N, 90.28°WHenrietta — 38.65°N, 90.37°WRedoak Hollow — 34.37°N, 97.34°WCelechovice Limestone — 49.57°N, 17.25°ERockford Limestone — 38.48°N, 85.75°WQiziqiao — 27.78°N, 111.48°EPalmarito — 8.03°N, 71.35°WNaujoji Akmené — 54.67°N, 22.00°EKhuff — 21.04°N, 57.69°EMoscow — 42.88°N, 78.03°WRoad Canyon — 30.39°N, 103.14°WGrenzland — 46.58°N, 13.18°E

Loading coastlines…

The named rock units Roundyella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 further formations hold fewer occurrences each and are not listed. 2 occurrences have no formation on record, which is common for older literature.

Roundyella and its relatives

Permian

Where Roundyella and its relatives were recorded in the Permian.

Found in the same rock

965 taxa

The Paleobiology Database records 102 sites for Roundyella, 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

33 references

Each of the 109 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. 21 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 Roundyella

Credit
N.W. Shupe
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Roundyella 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.

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 itScrobiculidae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.