Holcophylloceras polyolcum

No picture of Holcophylloceras polyolcum 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 Holcophylloceras polyolcum, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
HolcophyllocerasPBDB
Diet
carnivorePBDB, for Phylloceratida
Life habit
nektonicPBDB, for Phylloceratida
Motility
actively mobilePBDB, for Phylloceratida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 9.5 million years on record.

The record covers at least 164.3 Mya to 154.8 Mya. No occurrence read is dated outside 176 Mya to 143.1 Mya.

Early Jurassic — about 0 of 17 occurrencesMiddle Jurassic — about 2 of 17 occurrencesMiddle JurassicLate Jurassic — about 15 of 17 occurrencesLate JurassicEarly Cretaceous — about 0 of 17 occurrences177–176 Mya — about 0.0 occurrences176–174 Mya — about 0.1 occurrences174–173 Mya — about 0.1 occurrences173–172 Mya — about 0.1 occurrences172–171 Mya — about 0.1 occurrences171–170 Mya — about 0.1 occurrences170–169 Mya — about 0.1 occurrences169–168 Mya — about 0.2 occurrences168–166 Mya — about 0.3 occurrences166–165 Mya — about 0.3 occurrences165–164 Mya — about 0.3 occurrences164–163 Mya — about 0.2 occurrences163–162 Mya — about 0.2 occurrences162–161 Mya — about 0.1 occurrences161–160 Mya — about 0.1 occurrences160–158 Mya — about 0.1 occurrences158–157 Mya — about 0.7 occurrences157–156 Mya — about 1 occurrence156–155 Mya — about 1 occurrence155–154 Mya — about 3 occurrences154–153 Mya — about 4 occurrences153–152 Mya — about 2 occurrences152–150 Mya — about 1 occurrence150–149 Mya — about 1 occurrence149–148 Mya — about 0.1 occurrences148–147 Mya — about 0.1 occurrences147–146 Mya — about 0.1 occurrences146–145 Mya — about 0.1 occurrences145–144 Mya — about 0.1 occurrences144–142 Mya — about 0.0 occurrences164.3 Mya154.8 Mya176.7 Mya142.4 Mya

17 occurrences of Holcophylloceras polyolcum 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

17 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

2 formations

Rosso Ammonitico — 38.00°N, 12.00°EDalichai — 36.50°N, 58.95°E

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The named rock units Holcophylloceras polyolcum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 occurrences have no formation on record, which is common for older literature.

Holcophylloceras polyolcum and its relatives

Late Jurassic

Where Holcophylloceras polyolcum and its relatives were recorded in the Late Jurassic.

Found in the same rock

140 taxa

The Paleobiology Database records 17 sites for Holcophylloceras polyolcum, 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

8 references

Each of the 17 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 content0

No picture of Holcophylloceras polyolcum 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 Holcophylloceras polyolcum, or no answer at all. This entry cannot say which.

No 3D scan of Holcophylloceras polyolcum was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itHolcophylloceras through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Benecke 1865)