Asteroceras
Searched as Asteroceras meriodionale. The Paleobiology Database treats Asteroceras as the accepted name.

Uncredited · via Wikidata/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
- AsteroceratidaePBDB
- 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 6.6 million years on record.
The one occurrence read is dated to somewhere between 199.5 Mya and 192.9 Mya, which is a dating window rather than a span.
1 occurrence of Asteroceras 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
1 occurrences- Early Jurassic100%
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
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The named rock units Asteroceras has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Asteroceras and its relatives
Early JurassicWhere Asteroceras and its relatives were recorded in the Early Jurassic.
Found in the same rock
246 taxa- Arnioceras9 sites
- Lytoceras8 sites
- Phylloceras6 sites
- Promicroceras planicosta6 sites
- Arnioceras rejectum5 sites
- Juraphyllites5 sites
- Xipheroceras4 sites
- Zetoceras oenotrium4 sites
- Angulaticeras3 sites
- Anningella3 sites
- Arietites3 sites
- Calliphylloceras bicicolae3 sites
- Coroniceras3 sites
- Echioceras quenstedti3 sites
- Eparietites3 sites
- Eparietites denotatus3 sites
- Gastropoda3 sites
- Geyeroceras cylindricum3 sites
- Lucina3 sites
- Partschiceras striatocostatum3 sites
- Phylloceras hebertinum3 sites
- Xipheroceras ziphus3 sites
- Agassiceras2 sites
- Angulaticeras boucaultianum2 sites
The Paleobiology Database records 48 sites for Asteroceras, 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content2

Picture of Asteroceras
- Source
- Wikidata/Commons
- Credit
- nobody named on the record
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
3D model
- Source
- Sketchfab
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
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 itAsteroceratidae through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1867