Polyplectus

Polyplectus

Terver · CC BY 4.0 · via GBIF. 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
HarpoceratinaePBDB
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 50 million years on record.

The record covers at least 182.9 Mya to 132.6 Mya. No occurrence read is dated outside 184.2 Mya to 125.77 Mya.

Early Jurassic — about 116 of 117 occurrencesEarly JurassicMiddle Jurassic — about 0 of 117 occurrencesLate Jurassic — about 0 of 117 occurrencesEarly Cretaceous — about 1 of 117 occurrencesEarly Cretaceous185–183 Mya — about 14 occurrences183–181 Mya — about 24 occurrences181–179 Mya — about 23 occurrences179–177 Mya — about 24 occurrences177–175 Mya — about 24 occurrences175–173 Mya — about 6 occurrences133–131 Mya — about 0.3 occurrences131–129 Mya — about 0.3 occurrences129–127 Mya — about 0.3 occurrences127–125 Mya — about 0.1 occurrences182.9 Mya132.6 Mya185 Mya125 Mya

117 occurrences of Polyplectus on record, most of them in the Early Jurassic. 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

117 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

16 formations

Kisgerecse — 47.70°N, 18.43°EKisgerecse — 47.67°N, 18.45°EBugarone — 43.33°N, 13.22°ESpatsizi — 57.49°N, 128.87°WSpatsizi — 57.62°N, 128.97°WSpatsizi — 57.86°N, 129.57°WWhiteaves — 53.42°N, 132.26°WWhiteaves — 53.20°N, 132.05°WSubbetic Basin — 37.59°N, 3.21°WMarnes de Fontaneilles — 43.85°N, 3.12°EAgoudim — 31.95°N, 5.04°WKisgerecse Marl — 47.70°N, 18.49°EInici — 37.64°N, 13.00°EAmergou — 34.50°N, 5.13°WSmithers — 56.21°N, 126.35°WJurensismergel — 47.95°N, 7.82°EZegrí — 37.57°N, 3.50°WTolgyhat Limestone — 47.70°N, 18.49°EOzirovo — 43.11°N, 23.30°EStaa — 36.35°N, 10.07°E

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The named rock units Polyplectus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 52 occurrences have no formation on record, which is common for older literature.

Polyplectus and its relatives

Early Jurassic

Where Polyplectus and its relatives were recorded in the Early Jurassic.

Found in the same rock

253 taxa

The Paleobiology Database records 101 sites for Polyplectus, 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 117 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 Polyplectus

Source
GBIF
Credit
Terver
Licence
CC BY 4.0
Commercial use
the licence allows it

3D model

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

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itHarpoceratinae through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.