Holcophylloceras

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 least 64 million years on record.

The record covers at least 184.2 Mya to 119.57 Mya. No occurrence read is dated outside 201.4 Mya to 113.2 Mya.

Late Triassic — about 0 of 156 occurrencesEarly Jurassic — about 14 of 156 occurrencesEarly JurassicMiddle Jurassic — about 71 of 156 occurrencesMiddle JurassicLate Jurassic — about 49 of 156 occurrencesLate JurassicEarly Cretaceous — about 22 of 156 occurrencesEarly Cretaceous203–200 Mya — about 0.1 occurrences200–197 Mya — about 0.2 occurrences197–194 Mya — about 0.2 occurrences194–191 Mya — about 1 occurrence191–188 Mya — about 2 occurrences188–185 Mya — about 2 occurrences185–182 Mya — about 2 occurrences182–179 Mya — about 2 occurrences179–176 Mya — about 4 occurrences176–173 Mya — about 7 occurrences173–170 Mya — about 10 occurrences170–166 Mya — about 20 occurrences166–163 Mya — about 20 occurrences163–160 Mya — about 17 occurrences160–157 Mya — about 6 occurrences157–154 Mya — about 7 occurrences154–151 Mya — about 13 occurrences151–148 Mya — about 7 occurrences148–145 Mya — about 10 occurrences145–142 Mya — about 4 occurrences142–139 Mya — about 4 occurrences139–136 Mya — about 2 occurrences136–133 Mya — about 3 occurrences133–130 Mya — about 0.6 occurrences130–127 Mya — about 0.4 occurrences127–124 Mya — about 0.6 occurrences124–121 Mya — about 0.5 occurrences121–118 Mya — about 3 occurrences118–114 Mya — about 5 occurrences114–111 Mya — about 2 occurrences184.2 Mya119.57 Mya203 Mya111 Mya

156 occurrences 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

156 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

32 formations

Rosso Ammonitico — 38.00°N, 12.00°EDalichai — 37.15°N, 57.15°EDalichai — 36.59°N, 58.69°EDalichai — 36.56°N, 59.30°EDalichai — 36.50°N, 58.95°EDalichai — 37.38°N, 56.69°EBudden Canyon — 40.45°N, 122.62°WJurensismergel — 47.95°N, 7.82°EKialagvik — 57.31°N, 156.42°WInklin — 59.33°N, 133.72°WInklin — 59.35°N, 134.00°WInklin — 59.42°N, 134.00°WTuxedni — 62.12°N, 147.70°WTuxedni — 60.11°N, 152.73°WTuxedni — 59.97°N, 152.91°WMogyorósdomb Limestone — 47.17°N, 17.79°EDjangura — 43.90°N, 41.45°EDjangura — 43.90°N, 41.56°ESzentivánhegy Limestone — 47.17°N, 17.79°EBedford Canyon — 33.79°N, 117.60°WBedford Canyon — 33.79°N, 117.54°WKambe — 4.02°S, 39.55°EBaghamshah — 32.00°N, 57.00°ENishinakayama — 34.25°N, 131.00°EMoewaka — 37.37°S, 174.77°EPhantom Creek — 53.42°N, 132.26°WPounawea — 46.45°S, 169.55°EPurakauiti — 46.53°S, 169.55°EGuasasa — 22.67°N, 83.55°WPieniny Limestone — 49.43°N, 20.03°EMaiolica — 43.47°N, 12.72°ESpiti Shale — 32.28°N, 78.02°EQal'eh Dokhtar — 33.87°N, 57.30°EHabo beds — 23.20°N, 69.80°E

Loading coastlines…

The named rock units Holcophylloceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 further formations hold fewer occurrences each and are not listed. 74 occurrences have no formation on record, which is common for older literature.

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

64 references

Each of the 156 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. 52 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 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