Haploceras

Haploceras is a genus of late Upper Jurassic ammonoid cephalopods and the type for the Haploceratidae, similar to Lissoceras but with a broader whorl section and small blunt lappets and a blunt rostrum; some species with feeble ventral folds on body chamber.

Haploceras

via iDigBio · 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
HaploceratidaePBDB
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 19 million years on record.

The record covers at least 152.21 Mya to 132.6 Mya. No occurrence read is dated outside 161.5 Mya to 121.4 Mya.

Middle Jurassic — about 0 of 96 occurrencesLate Jurassic — about 63 of 96 occurrencesLate JurassicEarly Cretaceous — about 33 of 96 occurrencesEarly Cretaceous162–161 Mya — about 0.1 occurrences161–160 Mya — about 0.3 occurrences160–158 Mya — about 0.3 occurrences158–157 Mya — about 0.3 occurrences157–155 Mya — about 0.3 occurrences155–154 Mya — about 2 occurrences154–153 Mya — about 4 occurrences153–151 Mya — about 2 occurrences151–150 Mya — about 1 occurrence150–148 Mya — about 8 occurrences148–147 Mya — about 13 occurrences147–146 Mya — about 13 occurrences146–144 Mya — about 11 occurrences144–143 Mya — about 10 occurrences143–141 Mya — about 8 occurrences141–140 Mya — about 5 occurrences140–139 Mya — about 3 occurrences139–137 Mya — about 2 occurrences137–136 Mya — about 3 occurrences136–134 Mya — about 3 occurrences134–133 Mya — about 3 occurrences133–132 Mya — about 1 occurrence132–130 Mya — about 0.5 occurrences130–129 Mya — about 0.5 occurrences129–128 Mya — about 0.5 occurrences128–126 Mya — about 0.5 occurrences126–125 Mya — about 0.2 occurrences125–123 Mya — about 0.1 occurrences123–122 Mya — about 0.1 occurrences122–121 Mya — about 0.1 occurrences152.21 Mya132.6 Mya162.3 Mya120.6 Mya

96 occurrences of Haploceras 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

96 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

18 formations

Rossfeld — 47.78°N, 14.50°EPálihálás Limestone — 47.72°N, 18.50°EGuasasa — 22.67°N, 83.75°WGuasasa — 22.67°N, 83.55°WSzentivánhegy Limestone — 47.17°N, 17.79°ESzentivánhegy Limestone — 47.72°N, 18.50°ELa Caja — 23.63°N, 100.85°WLa Caja — 23.58°N, 100.82°WLes Marnes Intermédiaires — 35.68°N, 0.92°WHajar — 14.55°N, 48.04°EBugarone — 43.75°N, 13.02°EChia Gara — 37.01°N, 43.40°EKatrol — 23.50°N, 70.50°EKaliste — 49.03°N, 18.33°ENaifa — 14.34°N, 48.39°EArtemisa — 22.72°N, 83.08°WShuomo — 28.08°N, 86.00°EChinameca — 18.07°N, 94.63°WStramberk — 49.58°N, 18.11°EDvuyakornaya — 44.98°N, 35.37°ELa Casita — 25.05°N, 101.06°W

Loading coastlines…

The named rock units Haploceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 47 occurrences have no formation on record, which is common for older literature.

Haploceras and its relatives

Late Jurassic

Where Haploceras and its relatives were recorded in the Late Jurassic.

Found in the same rock

320 taxa

The Paleobiology Database records 65 sites for Haploceras, 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

33 references

Each of the 96 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. 21 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 content2

Picture of Haploceras

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itHaploceratidae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Zittel 1870)