Hypophylloceras

Hypophylloceras is a Cretaceous ammonite with a finely ribbed, compressed, involute shell; some having periodic stronger ribs or folds. The suture is complex, with large, asymmetric and finely divided lobes; the 1st lateral being much larger than the external (=ventral) and 2nd lateral lobes. Saddle endings commonly not phylloid.

Hypophylloceras

ノボホショコロトソ · CC BY 4.0 · via Wikipedia/Commons. 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
PhylloceratinaePBDB
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 60 million years on record.

The record covers at least 132.6 Mya to 72.2 Mya. No occurrence read is dated outside 143.1 Mya to 66 Mya.

Late Jurassic — about 0 of 237 occurrencesEarly Cretaceous — about 180 of 237 occurrencesEarly CretaceousLate Cretaceous — about 57 of 237 occurrencesLate CretaceousPaleocene — about 0 of 237 occurrences145–142 Mya — about 0.0 occurrences142–139 Mya — about 0.1 occurrences139–137 Mya — about 0.2 occurrences137–134 Mya — about 0.7 occurrences134–131 Mya — about 3 occurrences131–129 Mya — about 5 occurrences129–126 Mya — about 5 occurrences126–123 Mya — about 44 occurrences123–121 Mya — about 35 occurrences121–118 Mya — about 9 occurrences118–115 Mya — about 8 occurrences115–113 Mya — about 9 occurrences113–110 Mya — about 11 occurrences110–107 Mya — about 9 occurrences107–105 Mya — about 15 occurrences105–102 Mya — about 18 occurrences102–99 Mya — about 15 occurrences99–97 Mya — about 13 occurrences97–94 Mya — about 13 occurrences94–91 Mya — about 5 occurrences91–89 Mya — about 3 occurrences89–86 Mya — about 1 occurrence86–83 Mya — about 6 occurrences83–80 Mya — about 0.9 occurrences80–78 Mya — about 0.9 occurrences78–75 Mya — about 0.9 occurrences75–72 Mya — about 0.9 occurrences72–70 Mya — about 2 occurrences70–67 Mya — about 2 occurrences67–64 Mya — about 0.9 occurrences132.6 Mya72.2 Mya145 Mya64 Mya

237 occurrences of Hypophylloceras on record, most of them in the Early Cretaceous. 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

237 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

51 formations

Mzinene — 27.90°S, 32.32°EMzinene — 27.95°S, 32.31°EBudden Canyon — 40.47°N, 122.62°WBudden Canyon — 40.42°N, 122.65°WBudden Canyon — 40.43°N, 122.65°WGrès verts helvétiques — 45.99°N, 6.71°EGrès verts helvétiques — 45.99°N, 6.58°ELes Graous — 43.84°N, 7.08°EBuda Limestone — 30.13°N, 97.82°WBuda Limestone — 30.19°N, 97.72°WBuda Limestone — 30.26°N, 97.75°WCotinguiba — 10.76°S, 37.07°WCotinguiba — 10.86°S, 37.15°WRio Mayer — 48.92°S, 71.92°WRio Mayer — 49.42°S, 71.80°WUnnamed Vocontian — 43.22°N, 5.53°EUnnamed Vocontian — 43.73°N, 6.90°EMaiolica — 43.53°N, 12.62°EDonji Milanovac — 44.53°N, 22.04°EMarnes bleues — 44.33°N, 5.17°EHikagenosawa — 44.00°N, 143.00°ETaboulouart — 30.72°N, 9.80°WTaboulouart — 30.61°N, 9.73°WSalinas — 14.25°S, 12.36°EPerte-du-Rhone — 45.15°N, 5.48°EPerte du Rhône — 46.83°N, 6.52°EDays Creek — 42.95°N, 123.36°WConglomérats de Bargy — 45.97°N, 6.44°EPiedra Clavada — 48.92°S, 71.92°WFossil Bluff — 72.00°S, 69.00°WPluto Glacier — 71.75°S, 68.50°WRio Hatillo — 19.17°N, 70.67°WMakatini — 27.36°S, 32.14°EUmzamba — 31.10°S, 30.17°E

Loading coastlines…

The named rock units Hypophylloceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 27 further formations hold fewer occurrences each and are not listed. 129 occurrences have no formation on record, which is common for older literature.

Hypophylloceras and its relatives

Early Cretaceous

Where Hypophylloceras and its relatives were recorded in the Early Cretaceous.

Found in the same rock

1,115 taxa

The Paleobiology Database records 212 sites for Hypophylloceras, 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

74 references

Each of the 237 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. 62 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 Hypophylloceras

Credit
ノボホショコロトソ
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Hypophylloceras 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.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPhylloceratinae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Salfeld 1924)