Nilssonoceras

via GBIF · CC BY 4.0 · 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
- GeisonoceratidaePBDB
- Diet
- carnivorePBDB, for Cephalopoda
- Life habit
- nektonicPBDB, for Cephalopoda
- Motility
- fast-movingPBDB, for Cephalopoda
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At most 7.8 million years on record.
Every occurrence read is dated to somewhere between 472.1 Mya and 464.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Nilssonoceras on record, most of them in the Ordovician. 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
3 occurrences- Ordovician100%
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
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The named rock units Nilssonoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Nilssonoceras and its relatives
OrdovicianWhere Nilssonoceras and its relatives were recorded in the Ordovician.
Found in the same rock
9 taxa- Endoceras vaginatum2 sites
- Proterovaginoceras incognitum2 sites
- Adamsoceras holmi1 site
- Archigeisonoceras1 site
- Cochlioceras avus1 site
- Estonioceras1 site
- Holmiceras kjaerulfi1 site
- Proterovaginoceras1 site
- Rhynchorthoceras1 site
The Paleobiology Database records 3 sites for Nilssonoceras, 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
1 referenceEach of the 3 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 Nilssonoceras
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Nilssonoceras 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 itGeisonoceratidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Kröger 2004