Trachyceras aon

Trachyceras aon

via iDigBio · CC0 · 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
TrachycerasPBDB
Diet
carnivorePBDB, for Ceratitida
Life habit
nektonicPBDB, for Ceratitida
Motility
actively mobilePBDB, for Ceratitida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 3.4 million years on record.

The record covers at least 237 Mya to 233.6 Mya. No occurrence read is dated outside 241.464 Mya to 227.3 Mya.

Middle Triassic — about 1 of 23 occurrencesMiddle TriassicLate Triassic — about 22 of 23 occurrencesLate Triassic242–241 Mya — about 0.0 occurrences241–241 Mya — about 0.1 occurrences241–240 Mya — about 0.1 occurrences240–240 Mya — about 0.1 occurrences240–239 Mya — about 0.1 occurrences239–239 Mya — about 0.1 occurrences239–238 Mya — about 0.1 occurrences238–238 Mya — about 0.1 occurrences238–237 Mya — about 0.1 occurrences237–237 Mya — about 0.6 occurrences237–236 Mya — about 3 occurrences236–236 Mya — about 3 occurrences236–235 Mya — about 3 occurrences235–235 Mya — about 3 occurrences235–234 Mya — about 3 occurrences234–234 Mya — about 3 occurrences234–233 Mya — about 2 occurrences233–233 Mya — about 0.3 occurrences233–232 Mya — about 0.3 occurrences232–232 Mya — about 0.3 occurrences232–231 Mya — about 0.3 occurrences231–231 Mya — about 0.3 occurrences231–230 Mya — about 0.3 occurrences230–230 Mya — about 0.3 occurrences230–229 Mya — about 0.3 occurrences229–229 Mya — about 0.3 occurrences229–228 Mya — about 0.3 occurrences228–228 Mya — about 0.3 occurrences228–227 Mya — about 0.3 occurrences227–227 Mya — about 0.0 occurrences237 Mya233.6 Mya242 Mya226.8 Mya

23 occurrences of Trachyceras aon on record, most of them in the Late Triassic. 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

23 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

6 formations

Cassian — 46.55°N, 11.93°ECassian — 46.57°N, 11.94°ECassian — 46.51°N, 11.76°ESan Cassian — 46.64°N, 11.84°ESan Cassiano — 46.53°N, 11.42°EXiaowa — 25.90°N, 105.42°ECephalopod Limestone — 10.30°S, 123.71°EMuschelkalk — 45.94°N, 10.63°E

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The named rock units Trachyceras aon has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Trachyceras aon and its relatives

Late Triassic

Where Trachyceras aon and its relatives were recorded in the Late Triassic.

Found in the same rock

520 taxa

The Paleobiology Database records 13 sites for Trachyceras aon, 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 23 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Trachyceras aon

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Trachyceras aon 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.

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

Keep going

What may have been alongside itTrachyceras through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Munster 1834)