Perisphinctes (Dichotomoceras) bifurcatus

Perisphinctes (Dichotomoceras) bifurcatus

Orbigny (d') · 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
Perisphinctes (Dichotomoceras)PBDB
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 most 6.7 million years on record.

Every occurrence read is dated to somewhere between 161.5 Mya and 154.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Middle Jurassic — about 0 of 9 occurrencesLate Jurassic — about 9 of 9 occurrencesLate Jurassic162–161 Mya — about 0.0 occurrences161–161 Mya — about 0.1 occurrences161–161 Mya — about 0.1 occurrences161–161 Mya — about 0.1 occurrences161–160 Mya — about 0.1 occurrences160–160 Mya — about 0.1 occurrences160–160 Mya — about 0.1 occurrences160–160 Mya — about 0.1 occurrences160–159 Mya — about 0.1 occurrences159–159 Mya — about 0.1 occurrences159–159 Mya — about 0.5 occurrences159–159 Mya — about 1 occurrence159–158 Mya — about 1 occurrence158–158 Mya — about 1 occurrence158–158 Mya — about 1 occurrence158–158 Mya — about 0.2 occurrences158–157 Mya — about 0.2 occurrences157–157 Mya — about 0.2 occurrences157–157 Mya — about 0.2 occurrences157–157 Mya — about 0.2 occurrences157–156 Mya — about 0.2 occurrences156–156 Mya — about 0.2 occurrences156–156 Mya — about 0.2 occurrences156–156 Mya — about 0.2 occurrences156–155 Mya — about 0.2 occurrences155–155 Mya — about 0.2 occurrences155–155 Mya — about 0.2 occurrences155–155 Mya — about 0.0 occurrences162 Mya154.3 Mya

9 occurrences of Perisphinctes (Dichotomoceras) bifurcatus on record, most of them in the Late 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

9 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

4 formations

"Hartmannshof" — 49.23°N, 11.47°EL'Ammonitico Rosso Inférieur — 35.68°N, 0.92°WMarnes de Latrecey — 47.98°N, 4.85°EYatova — 40.98°N, 0.62°W

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The named rock units Perisphinctes (Dichotomoceras) bifurcatus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Perisphinctes (Dichotomoceras) bifurcatus and its relatives

Late Jurassic

Where Perisphinctes (Dichotomoceras) bifurcatus and its relatives were recorded in the Late Jurassic.

Found in the same rock

110 taxa

The Paleobiology Database records 9 sites for Perisphinctes (Dichotomoceras) bifurcatus, 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 9 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 content1

Picture of Perisphinctes (Dichotomoceras) bifurcatus

Source
GBIF
Credit
Orbigny (d')
Licence
CC BY 4.0
Commercial use
the licence allows it

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

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

Keep going

What may have been alongside itPerisphinctes (Dichotomoceras) through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Quenstedt 1847)