Polyptychites

Polyptichites is the perisphictoidean ammonite genus from the Lower Cretaceous of Russia. The shell is subinvolute and coarsely ribbed; ribs bifurcate or trifurcate mid or low on the flanks and cross over the rounded venter. The umbilicus is relatively small and deep. Outer whorls partially envelop the previous leaving a fairly deeply impressed dorsum.

Polyptychites

via iDigBio · CC BY · 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
PolyptychitinaePBDB
Diet
carnivorePBDB, for Ammonoidea
Life habit
nektonicPBDB, for Ammonoidea
Motility
fast-movingPBDB, for Ammonoidea
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 4.4 million years on record.

The record covers at least 137.05 Mya to 132.6 Mya. No occurrence read is dated outside 143.1 Mya to 125.77 Mya.

Late Jurassic — about 0 of 224 occurrencesEarly Cretaceous — about 224 of 224 occurrencesEarly Cretaceous144–143 Mya — about 0.0 occurrences143–142 Mya — about 0.2 occurrences142–142 Mya — about 0.2 occurrences142–141 Mya — about 0.2 occurrences141–141 Mya — about 0.2 occurrences141–140 Mya — about 0.2 occurrences140–139 Mya — about 0.2 occurrences139–139 Mya — about 0.3 occurrences139–138 Mya — about 0.4 occurrences138–137 Mya — about 0.4 occurrences137–137 Mya — about 9 occurrences137–136 Mya — about 30 occurrences136–136 Mya — about 30 occurrences136–135 Mya — about 30 occurrences135–134 Mya — about 30 occurrences134–134 Mya — about 30 occurrences134–133 Mya — about 30 occurrences133–133 Mya — about 30 occurrences133–132 Mya — about 0.3 occurrences132–131 Mya — about 0.2 occurrences131–131 Mya — about 0.2 occurrences131–130 Mya — about 0.2 occurrences130–130 Mya — about 0.2 occurrences130–129 Mya — about 0.2 occurrences129–128 Mya — about 0.2 occurrences128–128 Mya — about 0.2 occurrences128–127 Mya — about 0.2 occurrences127–126 Mya — about 0.2 occurrences126–126 Mya — about 0.2 occurrences126–125 Mya — about 0.0 occurrences137.05 Mya132.6 Mya143.6 Mya125.3 Mya

224 occurrences of Polyptychites on record, most of them in the Early Cretaceous. 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

224 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

10 formations

Palnatokes Bjerg — 72.48°N, 22.55°WPalnatokes Bjerg — 72.56°N, 22.52°WPalnatokes Bjerg — 74.55°N, 19.84°WPalnatokes Bjerg — 74.50°N, 20.00°WPalnatokes Bjerg — 72.48°N, 22.58°WPalnatokes Bjerg — 72.57°N, 22.55°WPalnatokes Bjerg — 74.59°N, 19.58°WDeer Bay — 78.50°N, 104.00°WDeer Bay — 74.67°N, 98.00°WDeer Bay — 78.63°N, 97.83°WDeer Bay — 78.54°N, 97.93°WDeer Bay — 78.64°N, 97.90°WDeer Bay — 80.00°N, 85.42°WDeer Bay — 77.90°N, 111.15°WDeer Bay — 79.85°N, 90.00°WDeer Bay — 78.64°N, 91.93°WDeer Bay — 78.50°N, 109.00°WDeer Bay — 78.72°N, 103.00°WRurikfjellet — 78.10°N, 13.89°ERurikfjellet — 77.62°N, 15.05°EBodzanow — 51.98°N, 19.02°EPaskenta — 40.13°N, 122.23°WLower Shale-Siltstone — 67.95°N, 135.41°WBluish Grey Shale — 67.92°N, 137.33°WUst'-Balyk — 63.75°N, 75.00°EBeattie Peaks — 55.95°N, 122.12°WWłocławek — 51.50°N, 20.06°E

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The named rock units Polyptychites has been recovered from, largest first. Drawn where the rock is now, not where it formed. 113 occurrences have no formation on record, which is common for older literature.

Polyptychites and its relatives

Early Cretaceous

Where Polyptychites and its relatives were recorded in the Early Cretaceous.

Found in the same rock

325 taxa

The Paleobiology Database records 121 sites for Polyptychites, 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 224 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 content2

Picture of Polyptychites

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itPolyptychitinae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Pavlow 1892)