Sanmartinoceras
Searched as Sanmartinoceras africanum cf. africanum. The Paleobiology Database treats Sanmartinoceras as the accepted name.

via GBIF · 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
- AconeceratinaePBDB
- 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 6.4 million years on record.
The one occurrence read is dated to somewhere between 119.57 Mya and 113.2 Mya, which is a dating window rather than a span.
1 occurrence of Sanmartinoceras on record, most of them in the Early Cretaceous. 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
1 occurrences- Early Cretaceous100%
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
Loading coastlines…
The named rock units Sanmartinoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Sanmartinoceras and its relatives
Early CretaceousWhere Sanmartinoceras and its relatives were recorded in the Early Cretaceous.
Found in the same rock
130 taxa- Tropaeum7 sites
- Pseudosilesites russoi5 sites
- Lytoceras4 sites
- Aconeceras nisoides3 sites
- Deshayesites3 sites
- Anomia laevigata2 sites
- Atherfieldastacus magnus2 sites
- Aucellina2 sites
- Cheloniceras2 sites
- Crioceratites (Emericiceras)2 sites
- Deshayesites deshayesi2 sites
- Dimitobelus (Tetrabelus)2 sites
- Enoploclytia2 sites
- Gervillia2 sites
- Hypophylloceras2 sites
- Neoastieria patagonica2 sites
- Neohibolites2 sites
- Peltocrioceras2 sites
- Peltocrioceras deeckei2 sites
- Peratobelus2 sites
- Pseudosaynella2 sites
- Pseudosaynella fimbriata2 sites
- Toxaster fittoni2 sites
- Toxoceratoides biplex2 sites
The Paleobiology Database records 29 sites for Sanmartinoceras, 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 referenceEach of the 1 occurrence 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 Sanmartinoceras
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Sanmartinoceras 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itAconeceratinae through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Bonarelli 1921