Polygrammoceras

Polygrammoceras is an orthoconic nautiloid that lived during the period from the middle Ordovician to the early Devonian in what is now North America and Eurasia.

Polygrammoceras

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
KionoceratidaePBDB
Diet
carnivorePBDB, for Orthocerida
Life habit
nektonicPBDB, for Orthocerida
Motility
actively mobilePBDB, for Orthocerida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Orthocerida

Time the record covers

At least 38 million years on record.

The record covers at least 471.3 Mya to 432.9 Mya. No occurrence read is dated outside 486.85 Mya to 426.7 Mya.

Cambrian — about 0 of 39 occurrencesOrdovician — about 29 of 39 occurrencesOrdovicianSilurian — about 10 of 39 occurrencesSilurian488–486 Mya — about 0.1 occurrences486–484 Mya — about 0.1 occurrences484–482 Mya — about 0.1 occurrences482–480 Mya — about 0.1 occurrences480–478 Mya — about 0.1 occurrences478–476 Mya — about 0.1 occurrences476–473 Mya — about 0.1 occurrences473–471 Mya — about 0.1 occurrences471–469 Mya — about 0.0 occurrences463–461 Mya — about 0.7 occurrences461–459 Mya — about 4 occurrences459–457 Mya — about 3 occurrences457–455 Mya — about 6 occurrences455–453 Mya — about 3 occurrences453–451 Mya — about 4 occurrences451–448 Mya — about 5 occurrences448–446 Mya — about 1 occurrence446–444 Mya — about 1 occurrence444–442 Mya — about 1.0 occurrences442–440 Mya — about 2 occurrences440–438 Mya — about 4 occurrences438–436 Mya — about 1 occurrence436–434 Mya — about 1 occurrence434–432 Mya — about 1 occurrence432–430 Mya — about 0.6 occurrences430–428 Mya — about 0.1 occurrences428–425 Mya — about 0.1 occurrences471.3 Mya432.9 Mya488 Mya425 Mya

39 occurrences of Polygrammoceras on record, most of them in the Ordovician. 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

39 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

Dunleith — 43.00°N, 91.00°WJupiter — 49.51°N, 63.63°WJupiter — 49.22°N, 62.40°WJupiter — 49.28°N, 63.22°WJupiter — 49.13°N, 62.50°WNakholmen — 60.00°N, 11.00°EFolkeslunda — 57.00°N, 17.00°EFolkeslunda — 60.91°N, 15.02°EMaquoketa — 45.00°N, 93.00°WScales Shale — 43.00°N, 91.00°WLexington Limestone — 37.91°N, 84.26°WLexington Limestone — 37.98°N, 84.14°WNorderhov — 59.95°N, 10.66°EArnestad — 60.00°N, 11.00°EFrognerkilen — 60.00°N, 11.00°ESolvang — 60.00°N, 11.00°EBaota — 29.00°N, 107.00°EShizipu — 27.00°N, 107.00°ERacine — 42.73°N, 87.78°WCummingsville — 45.00°N, 93.00°WWise Lake — 43.00°N, 91.00°WWenquangou — 36.00°N, 78.00°EFolkeslunda Limestone — 56.73°N, 16.72°ETyrone Limestone — 37.83°N, 84.55°WWether Law Linn — 55.81°N, 3.35°WGun River — 49.28°N, 62.15°WSkogerholmen — 59.86°N, 10.56°EMerrimack — 49.25°N, 61.80°WEllis Bay — 49.33°N, 61.89°W

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The named rock units Polygrammoceras 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. 1 occurrence has no formation on record, which is common for older literature.

Polygrammoceras and its relatives

Ordovician

Where Polygrammoceras and its relatives were recorded in the Ordovician.

Found in the same rock

437 taxa

The Paleobiology Database records 37 sites for Polygrammoceras, 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

17 references

Each of the 39 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. 5 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 Polygrammoceras

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

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itKionoceratidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Foerste 1927