Aenigmatoceras

Aenigmatoceras is a genus of ammonite cephalopods from the Carboniferous of Russia. It is tentatively placed within the family Cravenoceratidae based on similarities with Tympanoceras.

Aenigmatoceras

Apokryltaros · CC BY-SA 3.0 · 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
CravenoceratinaePBDB
Diet
carnivorePBDB, for Ammonoidea
Life habit
nektonicPBDB, for Goniatitida
Motility
fast-movingPBDB, for Ammonoidea
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At most 500 thousand years on record.

Every occurrence read is dated to somewhere between 321.8 Mya and 321.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Carboniferous — about 16 of 16 occurrencesCarboniferous322–322 Mya — about 2 occurrences322–322 Mya — about 2 occurrences322–322 Mya — about 2 occurrences322–322 Mya — about 2 occurrences322–322 Mya — about 2 occurrences322–322 Mya — about 2 occurrences322–321 Mya — about 2 occurrences321–321 Mya — about 2 occurrences321–321 Mya — about 2 occurrences321–321 Mya — about 2 occurrences322.3 Mya320.8 Mya

16 occurrences of Aenigmatoceras on record, most of them in the Carboniferous. 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

16 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.

Aenigmatoceras and its relatives

Carboniferous

Where Aenigmatoceras and its relatives were recorded in the Carboniferous.

Found in the same rock

53 taxa

The Paleobiology Database records 16 sites for Aenigmatoceras, 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

1 reference

Each of the 16 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 Aenigmatoceras

Credit
Apokryltaros
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Aenigmatoceras 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.

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

Occurrence data from the Paleobiology Database, CC BY 4.0. Ruzhentsev and Bogoslovskaya 1978