Ancolioceras subacutum

Ancolioceras subacutum

équipe des Fouilles du MnhnL · CC0 · via GBIF. 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
AncoliocerasPBDB
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 most 3.8 million years on record.

Every occurrence read is dated to somewhere between 174.7 Mya and 170.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Jurassic — about 0 of 4 occurrencesMiddle Jurassic — about 4 of 4 occurrencesMiddle Jurassic175–175 Mya — about 0.1 occurrences175–174 Mya — about 0.2 occurrences174–174 Mya — about 0.2 occurrences174–174 Mya — about 0.2 occurrences174–174 Mya — about 0.2 occurrences174–174 Mya — about 0.2 occurrences174–174 Mya — about 0.2 occurrences174–173 Mya — about 0.2 occurrences173–173 Mya — about 0.2 occurrences173–173 Mya — about 0.2 occurrences173–173 Mya — about 0.2 occurrences173–173 Mya — about 0.2 occurrences173–173 Mya — about 0.2 occurrences173–172 Mya — about 0.2 occurrences172–172 Mya — about 0.2 occurrences172–172 Mya — about 0.2 occurrences172–172 Mya — about 0.2 occurrences172–172 Mya — about 0.2 occurrences172–172 Mya — about 0.2 occurrences172–172 Mya — about 0.2 occurrences172–171 Mya — about 0.2 occurrences171–171 Mya — about 0.2 occurrences171–171 Mya — about 0.2 occurrences171–171 Mya — about 0.1 occurrences175.2 Mya170.4 Mya

4 occurrences of Ancolioceras subacutum on record, most of them in the Middle 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

4 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

3 formations

Castillo Pedroso — 43.02°N, 4.17°WAchdorf — 48.18°N, 8.76°EInferior Oolite — 50.74°N, 2.80°W

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The named rock units Ancolioceras subacutum has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Ancolioceras subacutum and its relatives

Middle Jurassic

Where Ancolioceras subacutum and its relatives were recorded in the Middle Jurassic.

Found in the same rock

9 taxa

The Paleobiology Database records 2 sites for Ancolioceras subacutum, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

3 references

Each of the 4 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Ancolioceras subacutum

Source
GBIF
Credit
équipe des Fouilles du MnhnL
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Ancolioceras subacutum 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 itAncolioceras through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Buckman 1899)