Cimomia

via iDigBio · CC0 · via iDigBio. 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
- HercoglossidaePBDB
- 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 72 million years on record.
The record covers at least 99.5 Mya to 27.3 Mya. No occurrence read is dated outside 103.3 Mya to 23.04 Mya.
154 occurrences of Cimomia on record, most of them in the Eocene. 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
154 occurrences- Early Cretaceousunder 1%
- Late Cretaceous9%
- Paleocene35%
- Eocene53%
- Oligocene2%
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
49 formations
- London Clay Formation12
- Auradu Formation12
- Clayton Formation · Midway Group8
- Kincaid Formation · Midway Group7
- Daban Formation7
- Ewekoro Formation5
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The named rock units Cimomia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 25 further formations hold fewer occurrences each and are not listed. 32 occurrences have no formation on record, which is common for older literature.
Cimomia and its relatives
EoceneWhere Cimomia and its relatives were recorded in the Eocene.
Found in the same rock
1,265 taxa- Ostrea7 sites
- Odostomia6 sites
- Aturia ziczac5 sites
- Eutrephoceras5 sites
- Ispharina sulcifera5 sites
- Nucula5 sites
- Pitar (Calpitaria) sulcatarius5 sites
- Pseudoliva5 sites
- Sycostoma bulbiforme5 sites
- Tellina5 sites
- Venericardia5 sites
- Anomia anomialis4 sites
- Deltoidonautilus biyogorensis4 sites
- Dentalium4 sites
- Haustator imbricataria4 sites
- Natica4 sites
- Seila mundula4 sites
- Sigatica hantoniensis4 sites
- Tibia (Eotibia) sublucida4 sites
- Turricula4 sites
- Turritella4 sites
- Acteon3 sites
- Antalis constricta3 sites
- Athleta (Neoathleta)3 sites
The Paleobiology Database records 137 sites for Cimomia, 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
57 references- Eocene Nautiloids of British Somaliland20
- Tertiary nautiloids of the Americas11
- Tertiary nautiloids (Eutrephoceras and Cimomia) from South Australia8
- A monograph of the Eocene Mollusca, or descriptions of shells from the older Tertiaries of England. Part I. Cephalopoda7
- Stratigraphy and Paleontology of the Ewekoro Formation (Paleocene) of Southwestern Nigeria5
- Deshayes, 18355
- Campanian-early Eocene cephalopods from Kharga Oasis, Western Desert, Egypt4
- Stratigraphy and Paleobiology of the Upper Cretaceous - Lower Paleogene Sediments from the Trans-Saharan Seaway in Mali4
- The molluscan fauna of the Eocene Lillebælt clay, Denmark4
- The nautiloid Cimomia in the Plantagenet Group4
- Zur systematik jungmesozoischer Nautiliden besonderer Berücksichtigung der iberischen Nautilinae d'Orb4
- The Midway Group of Texas4
Each of the 154 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. 45 further references are not listed. 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 content2

Picture of Cimomia
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- APEX UniLaSalle
- Licence
- CC Attribution-NonCommercial-ShareAlike
- Commercial use
- the licence does not allow it
MorphoSource 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 itHercoglossidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1866)