Sholakoceras

Sholakoceras is an extinct genus of nautiloid cephalopods from the Lower Permian of southern Russia, included in the Tainoceratacean family Rhiphaeoceratidae,. The shell of Shalakoceras is evolute with a perforate umbilicus. Whorl sections are subquadrate with the ventral and lateral sides flattened and ventral and umbilical shoulders rounded. Lateral areas bear short, slightly oblique ribs. sutures form broad ventral saddles with a slight, shallow lobe, very shallow lateral lobes, and a deep funnel-shaped dorsal lobe.

No picture of Sholakoceras was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Sholakoceras, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
RhiphaeoceratidaePBDB
Diet
carnivorePBDB, for Nautilida
Life habit
nektobenthicPBDB, for Nautilida
Motility
actively mobilePBDB, for Nautilida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 35 million years on record.

The record covers at least 290.1 Mya to 254.14 Mya. No occurrence read is dated outside 298.9 Mya to 251.902 Mya.

Carboniferous — about 0 of 8 occurrencesPermian — about 8 of 8 occurrencesPermianEarly Triassic — about 0 of 8 occurrences300–298 Mya — about 0.1 occurrences298–297 Mya — about 0.2 occurrences297–295 Mya — about 0.2 occurrences295–293 Mya — about 0.3 occurrences293–292 Mya — about 1 occurrence292–290 Mya — about 1 occurrence290–288 Mya — about 0.2 occurrences288–287 Mya — about 0.2 occurrences287–285 Mya — about 0.2 occurrences285–284 Mya — about 0.2 occurrences284–282 Mya — about 0.0 occurrences275–274 Mya — about 0.1 occurrences274–272 Mya — about 0.2 occurrences272–271 Mya — about 0.2 occurrences271–269 Mya — about 0.2 occurrences269–267 Mya — about 0.2 occurrences267–266 Mya — about 1 occurrence266–264 Mya — about 1 occurrence254–253 Mya — about 0.7 occurrences253–251 Mya — about 0.3 occurrences290.1 Mya254.14 Mya299.8 Mya251 Mya

8 occurrences of Sholakoceras 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

2 formations

Shuangputang — 40.36°N, 98.90°EDalong — 26.51°N, 106.87°E

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The named rock units Sholakoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Sholakoceras and its relatives

Permian

Where Sholakoceras and its relatives were recorded in the Permian.

Found in the same rock

244 taxa

The Paleobiology Database records 7 sites for Sholakoceras, 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 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. 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 content0

No picture of Sholakoceras was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Sholakoceras, or no answer at all. This entry cannot say which.

No 3D scan of Sholakoceras 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 itRhiphaeoceratidae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ruzhentsev and Shimanskiy 1954