Acrochordiceras

Acrochordiceras is a genus of Middle Triassic ammonoid cephalopods belonging to the ceratitid family Acrochordiceratidae, included in the superfamily Ceratitoidea.

Acrochordiceras

Kent G. Budge · CC BY-SA 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
AcrochordiceratidaePBDB
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 5.1 million years on record.

The record covers at least 248.6 Mya to 243.43 Mya. No occurrence read is dated outside 250.8 Mya to 227.3 Mya.

Early Triassic — about 2 of 232 occurrencesEarly TriassicMiddle Triassic — about 223 of 232 occurrencesMiddle TriassicLate Triassic — about 7 of 232 occurrencesLate Triassic251–250 Mya — about 0.3 occurrences250–250 Mya — about 0.7 occurrences250–249 Mya — about 0.7 occurrences249–248 Mya — about 0.2 occurrences247–246 Mya — about 4 occurrences246–246 Mya — about 6 occurrences246–245 Mya — about 52 occurrences245–244 Mya — about 80 occurrences244–243 Mya — about 48 occurrences243–242 Mya — about 14 occurrences242–242 Mya — about 14 occurrences242–241 Mya — about 1 occurrence241–240 Mya — about 0.6 occurrences240–239 Mya — about 0.6 occurrences239–238 Mya — about 0.6 occurrences238–237 Mya — about 0.6 occurrences237–237 Mya — about 0.6 occurrences237–236 Mya — about 0.6 occurrences236–235 Mya — about 0.6 occurrences235–234 Mya — about 0.6 occurrences234–233 Mya — about 0.6 occurrences233–233 Mya — about 0.6 occurrences233–232 Mya — about 0.6 occurrences232–231 Mya — about 0.6 occurrences231–230 Mya — about 0.6 occurrences230–229 Mya — about 0.6 occurrences229–228 Mya — about 0.6 occurrences228–228 Mya — about 0.6 occurrences228–227 Mya — about 0.2 occurrences248.6 Mya243.43 Mya251.3 Mya226.8 Mya

232 occurrences of Acrochordiceras on record, most of them in the Middle 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

232 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

25 formations

Favret — 39.61°N, 117.49°WFavret — 40.05°N, 117.54°WFavret — 39.13°N, 114.29°WFavret — 39.85°N, 117.47°WFavret — 40.07°N, 117.58°WFavret — 40.02°N, 117.35°WPrida — 40.47°N, 118.13°WPrida — 40.47°N, 118.16°WPrida — 39.85°N, 117.48°WGutenstein — 47.68°N, 14.73°EAcheshbok — 44.13°N, 40.31°EAcheshbok — 44.04°N, 40.47°EFelsoörs — 46.95°N, 17.70°EFelsoörs — 46.93°N, 17.83°EFelsõörs — 46.92°N, 17.82°EBanna — 24.58°N, 106.89°EChaqupu — 30.00°N, 90.76°EBulog — 43.82°N, 18.44°EBulog — 43.85°N, 18.48°EKarazin — 43.00°N, 131.92°EDosso dei Morti — 45.99°N, 10.61°EUpper Ceratite Limestone — 32.52°N, 71.93°EAlam — 32.99°N, 53.69°ESchreyeralm — 47.58°N, 13.59°EKomarani — 43.16°N, 19.06°EXinyuan — 25.00°N, 107.00°EBaifeng — 24.83°N, 106.75°EDong Trau — 19.50°N, 105.00°ENam Sam — 20.50°N, 104.00°EDont — 46.72°N, 12.05°EAngolo — 46.00°N, 10.17°ETelong — 4.85°N, 102.30°ECaerace — 45.05°N, 29.06°EQingyan — 26.33°N, 106.67°E

Loading coastlines…

The named rock units Acrochordiceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. One further formation holds fewer occurrences and is not listed. 132 occurrences have no formation on record, which is common for older literature.

Acrochordiceras and its relatives

Middle Triassic

Where Acrochordiceras and its relatives were recorded in the Middle Triassic.

Found in the same rock

657 taxa

The Paleobiology Database records 164 sites for Acrochordiceras, 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

37 references

Each of the 232 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. 25 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 Acrochordiceras

Credit
Kent G. Budge
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itAcrochordiceratidae through timeFormations of the Middle TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Hyatt 1877)