Cooperoceras
Cooperoceras is an extinct genus of nautilid cephalopods within the family Tainoceratidae. Its most characteristic trait is the presence of long paired hollow spines on its outer sides, which is one of the most extreme forms of shell ornamentation in nautiloids. It lived from the Upper Carboniferous to the Lower Permian and its fossils have been found in North America and Europe.

James St. John · CC BY 2.0 · 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
- MetacoceratidaePBDB
- Diet
- carnivorePBDB, for Nautilida
- Life habit
- nektobenthicPBDB, for Nautilida
- Motility
- actively mobilePBDB, for Nautilida
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At least 24 million years on record.
The record covers at least 298.9 Mya to 274.4 Mya. No occurrence read is dated outside 303.7 Mya to 266.9 Mya.
4 occurrences of Cooperoceras on record, most of them in the Permian. 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
4 occurrences- Carboniferous25%
- Permian75%
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 Cooperoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Cooperoceras and its relatives
PermianWhere Cooperoceras and its relatives were recorded in the Permian.
Found in the same rock
206 taxa- Hustedia2 sites
- Pseudorthoceras2 sites
- Acanthocrania intermedia1 site
- Acanthopecten carboniferus1 site
- Acanthopecten coloradoensis1 site
- Acharax (Nacrosolemya) trapezoides1 site
- Acolosia anomala1 site
- Acrothoracica1 site
- Adlatipora1 site
- Allorhynchus permianum wordense1 site
- Allorhynchus triangulatum1 site
- Ameura1 site
- Anatsabites multiliratus1 site
- Anisopyge perannulata1 site
- Annuliconcha dentata1 site
- Astartella compacta1 site
- Babylonites carinatus1 site
- Babylonites conicus1 site
- Bamyaniceras knighti1 site
- Bellerophon (Bellerophon) stevensianus1 site
- Bothrionia transversa1 site
- Brachycycloceras1 site
- Brachycycloceras normale1 site
- Cactosteges anomalus1 site
The Paleobiology Database records 3 sites for Cooperoceras, 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
3 references- Permian nautiloids from the Glass Mountains and the Sierra Diablo of west Texas2
- A coiled nautiloid fauna from the Mattoon Formation (Pennsylvanian) of Illinois1
- American Permian nautiloids1
Each of the 4 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. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Cooperoceras
- Source
- Wikipedia/Commons
- Credit
- James St. John
- Licence
- CC BY 2.0
- Commercial use
- the licence allows it
No 3D scan of Cooperoceras 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.
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
What may have been alongside itMetacoceratidae through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Miller 1945