Harpoceras serpentinum

Harpoceras serpentinum

via iDigBio · CC BY · 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
HarpocerasPBDB
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 28 million years on record.

The record covers at least 182.9 Mya to 154.8 Mya. No occurrence read is dated outside 184.2 Mya to 152.21 Mya.

Early Jurassic — about 26 of 27 occurrencesEarly JurassicMiddle Jurassic — about 0 of 27 occurrencesLate Jurassic — about 1 of 27 occurrencesLate Jurassic185–184 Mya — about 9 occurrences184–183 Mya — about 16 occurrences183–182 Mya — about 0.8 occurrences182–180 Mya — about 0.2 occurrences155–154 Mya — about 0.4 occurrences154–153 Mya — about 0.4 occurrences153–152 Mya — about 0.2 occurrences182.9 Mya154.8 Mya184.8 Mya151.6 Mya

27 occurrences of Harpoceras serpentinum on record, most of them in the Early 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

27 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

10 formations

Camino — 43.05°N, 4.07°WKisgerecse — 47.66°N, 18.47°ECastillo Pedroso — 43.15°N, 4.37°WKisgerecse Marl — 47.70°N, 18.50°EBugarone — 43.33°N, 13.22°EOzirovo — 41.89°N, 24.58°EMarnes à Deltoideum delta — 49.52°N, 0.10°ECastillo Pedros — 42.89°N, 3.98°WAgoudim — 31.95°N, 5.04°WPosidonienschiefer — 49.35°N, 11.36°E

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The named rock units Harpoceras serpentinum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.

Harpoceras serpentinum and its relatives

Early Jurassic

Where Harpoceras serpentinum and its relatives were recorded in the Early Jurassic.

Found in the same rock

50 taxa

The Paleobiology Database records 22 sites for Harpoceras serpentinum, 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

10 references

Each of the 27 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 content1

Picture of Harpoceras serpentinum

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Harpoceras serpentinum 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 itHarpoceras through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Schlotheim 1813)