Denckmannia malagma

Denckmannia malagma (Dumortier, 1874), a relative of Denckmannia malagma — not Denckmannia malagma itself

Not Denckmannia malagma. This is Denckmannia malagma (Dumortier, 1874), a relative — both are Phymatoceratidae.

Robert Colbach · 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
PhymatocerasPBDB
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 8.2 million years on record.

Every occurrence read is dated to somewhere between 182.9 Mya and 174.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Jurassic — about 10 of 10 occurrencesEarly JurassicMiddle Jurassic — about 0 of 10 occurrences183–183 Mya — about 0.1 occurrences183–182 Mya — about 0.4 occurrences182–182 Mya — about 0.4 occurrences182–182 Mya — about 0.4 occurrences182–182 Mya — about 0.4 occurrences182–181 Mya — about 0.4 occurrences181–181 Mya — about 0.4 occurrences181–181 Mya — about 0.4 occurrences181–180 Mya — about 0.4 occurrences180–180 Mya — about 0.4 occurrences180–180 Mya — about 0.4 occurrences180–179 Mya — about 0.4 occurrences179–179 Mya — about 0.4 occurrences179–179 Mya — about 0.4 occurrences179–178 Mya — about 0.4 occurrences178–178 Mya — about 0.4 occurrences178–178 Mya — about 0.4 occurrences178–178 Mya — about 0.4 occurrences178–177 Mya — about 0.4 occurrences177–177 Mya — about 0.4 occurrences177–177 Mya — about 0.4 occurrences177–176 Mya — about 0.4 occurrences176–176 Mya — about 0.4 occurrences176–176 Mya — about 0.4 occurrences176–175 Mya — about 0.4 occurrences175–175 Mya — about 0.4 occurrences175–175 Mya — about 0.4 occurrences175–175 Mya — about 0.1 occurrences183.4 Mya174.2 Mya

10 occurrences of Denckmannia malagma on record, most of them in the Early 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

10 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

1 formation

Ozirovo — 43.08°N, 23.23°E

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The named rock units Denckmannia malagma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Denckmannia malagma and its relatives

Early Jurassic

Where Denckmannia malagma and its relatives were recorded in the Early Jurassic.

Found in the same rock

37 taxa

The Paleobiology Database records 10 sites for Denckmannia malagma, 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

5 references

Each of the 10 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 Denckmannia malagma (Dumortier, 1874)

Source
GBIF
Credit
Robert Colbach
Licence
CC0
Commercial use
the licence allows it

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

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

Keep going

What may have been alongside itPhymatoceras through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Dumortier 1874)