Perisphinctes (Dichotomoceras)

No picture of Perisphinctes (Dichotomoceras) was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Perisphinctes (Dichotomoceras), or no answer at all. This entry cannot say which.

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 3.1 million years on record.

The record covers at least 157.9 Mya to 154.8 Mya. No occurrence read is dated outside 161.5 Mya to 149.2 Mya.

Middle Jurassic — about 0 of 59 occurrencesLate Jurassic — about 59 of 59 occurrencesLate Jurassic162–161 Mya — about 0.9 occurrences161–161 Mya — about 1 occurrence161–160 Mya — about 1 occurrence160–160 Mya — about 1 occurrence160–159 Mya — about 1 occurrence159–159 Mya — about 3 occurrences159–158 Mya — about 8 occurrences158–158 Mya — about 8 occurrences158–158 Mya — about 5 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 occurrences155–155 Mya — about 4 occurrences155–154 Mya — about 1 occurrence154–154 Mya — about 0.5 occurrences154–154 Mya — about 0.5 occurrences154–153 Mya — about 0.5 occurrences153–153 Mya — about 0.5 occurrences153–152 Mya — about 0.5 occurrences152–152 Mya — about 0.3 occurrences152–151 Mya — about 0.2 occurrences151–151 Mya — about 0.2 occurrences151–150 Mya — about 0.2 occurrences150–150 Mya — about 0.2 occurrences150–150 Mya — about 0.2 occurrences150–149 Mya — about 0.2 occurrences157.9 Mya154.8 Mya162 Mya148.7 Mya

59 occurrences of Perisphinctes (Dichotomoceras) 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

59 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

8 formations

Marnes de Latrecey — 47.98°N, 4.85°E"Hartmannshof" — 49.23°N, 11.47°EYatova — 40.98°N, 0.62°WL'Ammonitico Rosso Inférieur — 35.68°N, 0.92°WRosso Ammonitico — 38.00°N, 12.00°EEffinger Schichten — 47.26°N, 7.52°EWagad Sandstone — 23.49°N, 70.49°EKhadir — 23.75°N, 70.50°E

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The named rock units Perisphinctes (Dichotomoceras) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 38 occurrences have no formation on record, which is common for older literature.

Perisphinctes (Dichotomoceras) and its relatives

Late Jurassic

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

Found in the same rock

287 taxa

The Paleobiology Database records 33 sites for Perisphinctes (Dichotomoceras), 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 59 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 content0

No picture of Perisphinctes (Dichotomoceras) was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Perisphinctes (Dichotomoceras), or no answer at all. This entry cannot say which.

No 3D scan of Perisphinctes (Dichotomoceras) was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

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.