Perisphinctes (Dichotomosphinctes)

Dichotomosphinctes Buckman, 1926, a relative of Perisphinctes (Dichotomosphinctes) — not Perisphinctes (Dichotomosphinctes) itself

Not Perisphinctes (Dichotomosphinctes). This is Dichotomosphinctes Buckman, 1926, a relative.

Kurt Meiers · CC0 · 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
PerisphinctesPBDB
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 4.2 million years on record.

The record covers at least 159 Mya to 154.8 Mya. No occurrence read is dated outside 165.3 Mya to 149.2 Mya.

Middle Jurassic — about 1 of 101 occurrencesMiddle JurassicLate Jurassic — about 100 of 101 occurrencesLate Jurassic166–165 Mya — about 0.0 occurrences165–165 Mya — about 0.1 occurrences165–164 Mya — about 0.1 occurrences164–164 Mya — about 0.1 occurrences164–163 Mya — about 0.1 occurrences163–162 Mya — about 0.1 occurrences162–162 Mya — about 0.1 occurrences162–161 Mya — about 2 occurrences161–161 Mya — about 4 occurrences161–160 Mya — about 4 occurrences160–160 Mya — about 4 occurrences160–159 Mya — about 6 occurrences159–158 Mya — about 26 occurrences158–158 Mya — about 23 occurrences158–157 Mya — about 4 occurrences157–157 Mya — about 4 occurrences157–156 Mya — about 4 occurrences156–156 Mya — about 4 occurrences156–155 Mya — about 4 occurrences155–154 Mya — about 2 occurrences154–154 Mya — about 1 occurrence154–153 Mya — about 1 occurrence153–153 Mya — about 1 occurrence153–152 Mya — about 1 occurrence152–152 Mya — about 0.5 occurrences152–151 Mya — about 0.5 occurrences151–150 Mya — about 0.5 occurrences150–150 Mya — about 0.5 occurrences150–149 Mya — about 0.5 occurrences149–149 Mya — about 0.1 occurrences159 Mya154.8 Mya165.8 Mya148.7 Mya

101 occurrences of Perisphinctes (Dichotomosphinctes) 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

101 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

15 formations

Yatova — 40.98°N, 0.62°WMariposa — 38.89°N, 120.92°WMariposa — 38.76°N, 120.80°WMariposa — 38.10°N, 120.66°WMariposa — 37.98°N, 120.56°WMariposa — 37.98°N, 120.52°WMariposa — 37.54°N, 120.09°WCalcaires argileux de Bonnevaux — 47.13°N, 6.15°E"Hartmannshof" — 49.23°N, 11.47°EArimine — 36.47°N, 137.48°EHabo beds — 23.20°N, 69.80°ERosso Ammonitico — 38.00°N, 12.00°EWashtawa — 23.48°N, 70.46°EKorallenoolith — 52.15°N, 9.98°ECouches à Spérites — 47.98°N, 4.85°EWheatley Limestone — 51.75°N, 1.20°WTheoi Marls — 46.40°N, 0.06°WStaffin Shale — 57.65°N, 6.24°WMonte de Oro — 39.54°N, 121.51°WCoralline Oolite — 54.25°N, 0.47°W

Loading coastlines…

The named rock units Perisphinctes (Dichotomosphinctes) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 67 occurrences have no formation on record, which is common for older literature.

Perisphinctes (Dichotomosphinctes) and its relatives

Late Jurassic

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

Found in the same rock

438 taxa

The Paleobiology Database records 60 sites for Perisphinctes (Dichotomosphinctes), 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

24 references

Each of the 101 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. 12 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 Dichotomosphinctes Buckman, 1926

Source
GBIF
Credit
Kurt Meiers
Licence
CC0
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 through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Buckman 1926)