Holcophylloceras

Searched as Holcophylloceras polyolcum caucasica. The Paleobiology Database treats Holcophylloceras as the accepted name.

Holcophylloceras

via iDigBio · CC BY-NC-SA · via iDigBio. 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
CalliphylloceratinaePBDB
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 most 6.7 million years on record.

The one occurrence read is dated to somewhere between 168.2 Mya and 161.5 Mya, which is a dating window rather than a span.

Middle Jurassic — about 1 of 1 occurrenceMiddle JurassicLate Jurassic — about 0 of 1 occurrence168–168 Mya — about 0.0 occurrences168–168 Mya — about 0.0 occurrences168–168 Mya — about 0.0 occurrences168–167 Mya — about 0.0 occurrences167–167 Mya — about 0.0 occurrences167–167 Mya — about 0.0 occurrences167–167 Mya — about 0.0 occurrences167–166 Mya — about 0.0 occurrences166–166 Mya — about 0.0 occurrences166–166 Mya — about 0.0 occurrences166–166 Mya — about 0.0 occurrences166–165 Mya — about 0.0 occurrences165–165 Mya — about 0.0 occurrences165–165 Mya — about 0.0 occurrences165–165 Mya — about 0.0 occurrences165–164 Mya — about 0.0 occurrences164–164 Mya — about 0.0 occurrences164–164 Mya — about 0.0 occurrences164–164 Mya — about 0.0 occurrences164–163 Mya — about 0.0 occurrences163–163 Mya — about 0.0 occurrences163–163 Mya — about 0.0 occurrences163–163 Mya — about 0.0 occurrences163–162 Mya — about 0.0 occurrences162–162 Mya — about 0.0 occurrences162–162 Mya — about 0.0 occurrences162–162 Mya — about 0.0 occurrences162–161 Mya — about 0.0 occurrences168.7 Mya161 Mya

1 occurrence of Holcophylloceras on record, most of them in the Middle 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

1 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

1 formation

Dalichai — 36.59°N, 58.69°E

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The named rock units Holcophylloceras has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Holcophylloceras and its relatives

Middle Jurassic

Where Holcophylloceras and its relatives were recorded in the Middle Jurassic.

Found in the same rock

938 taxa

The Paleobiology Database records 131 sites for Holcophylloceras, 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

1 reference

Each of the 1 occurrence 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Holcophylloceras

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-SA
Commercial use
the licence does not allow it

No 3D scan of Holcophylloceras 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 itCalliphylloceratinae through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Spath 1927