Polonoceras

Polonoceras is a genus included in the goniatitid subfamily Aulatornoceratinae named by Dybczynski, 1913. The type species is Polonoceras planum Dybczynski. According to Miller, et al. in the American Treatise on Invertebrate Paleontology, 1957, Polonoceras is a subgenus of Tornoceras.

No picture of Polonoceras 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 Polonoceras, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
AulatornoceratinaePBDB
Diet
carnivorePBDB, for Ammonoidea
Life habit
nektonicPBDB, for Goniatitida
Motility
fast-movingPBDB, for Ammonoidea
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 3.6 million years on record.

The record covers at least 372.15 Mya to 368.5 Mya. No occurrence read is dated outside 375.2 Mya to 358.86 Mya.

Devonian — about 31 of 31 occurrencesDevonianCarboniferous — about 0 of 31 occurrences376–375 Mya — about 0.0 occurrences375–375 Mya — about 0.2 occurrences375–374 Mya — about 0.2 occurrences374–373 Mya — about 0.2 occurrences373–373 Mya — about 0.2 occurrences373–372 Mya — about 0.2 occurrences372–372 Mya — about 0.6 occurrences372–371 Mya — about 0.7 occurrences371–370 Mya — about 0.7 occurrences370–370 Mya — about 0.7 occurrences370–369 Mya — about 0.7 occurrences369–369 Mya — about 0.7 occurrences369–368 Mya — about 3 occurrences368–368 Mya — about 4 occurrences368–367 Mya — about 4 occurrences367–366 Mya — about 4 occurrences366–366 Mya — about 4 occurrences366–365 Mya — about 4 occurrences365–365 Mya — about 0.8 occurrences365–364 Mya — about 0.1 occurrences364–364 Mya — about 0.1 occurrences364–363 Mya — about 0.1 occurrences363–362 Mya — about 0.1 occurrences362–362 Mya — about 0.1 occurrences362–361 Mya — about 0.1 occurrences361–361 Mya — about 0.1 occurrences361–360 Mya — about 0.1 occurrences360–360 Mya — about 0.1 occurrences360–359 Mya — about 0.1 occurrences359–358 Mya — about 0.0 occurrences372.15 Mya368.5 Mya375.7 Mya358.4 Mya

31 occurrences of Polonoceras on record, most of them in the Devonian. 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

31 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

3 formations

Virgin Hills — 18.00°S, 125.50°ESadler — 18.10°S, 125.78°ENehden — 51.44°N, 8.65°E

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The named rock units Polonoceras 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.

Polonoceras and its relatives

Devonian

Where Polonoceras and its relatives were recorded in the Devonian.

Found in the same rock

58 taxa

The Paleobiology Database records 30 sites for Polonoceras, 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

4 references

Each of the 31 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 Polonoceras 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 Polonoceras, or no answer at all. This entry cannot say which.

No 3D scan of Polonoceras 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 itAulatornoceratinae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Dybczynski 1913)