Cyclostremiscus
Cyclostremiscus is a genus of small sea snails in the family Tornidae.

Manuel CABALLER · CC BY 4.0 · 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
- VitrinellidaePBDB
- Life habit
- epifaunalPBDB, for Gastropoda
- Motility
- actively mobilePBDB, for Gastropoda
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 61 million years on record.
The record covers at least 61.66 Mya to 11.7 ka. No occurrence read is dated outside 66 Mya to 0 Mya.
158 occurrences of Cyclostremiscus on record, most of them in the Eocene. The Paleobiology Database records this as a living group. 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
158 occurrencesThese 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
50 formations
- Gatun Formation17
- Cook Mountain Formation · Claiborne Group16
- Gosport Sand Formation · Claiborne Group9
- Reklaw Formation · Claiborne Group9
- Caloosahatchee Formation8
- Agueguexquite Formation7
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The named rock units Cyclostremiscus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 26 further formations hold fewer occurrences each and are not listed. 8 occurrences have no formation on record, which is common for older literature.
Cyclostremiscus and its relatives
EoceneWhere Cyclostremiscus and its relatives were recorded in the Eocene.
Found in the same rock
2,057 taxa- Turritella24 sites
- Athleta petrosa20 sites
- Cadulus18 sites
- Ficus18 sites
- Pyramidella17 sites
- Retusa galba17 sites
- Acteon16 sites
- Microdrillia16 sites
- Ancilla staminea15 sites
- Bullata semen15 sites
- Venericardia (Rotundicardia) rotunda15 sites
- Pseudoliva vetusta14 sites
- Turbonilla14 sites
- Corbula (Caryocorbula) alabamiensis13 sites
- Dentalium13 sites
- Michela trabeatoides13 sites
- Sinum13 sites
- Diodora12 sites
- Levifusus mortoniopsis12 sites
- Solariorbis12 sites
- Turbinolia (Turbinolia) pharetra12 sites
- Anomia simplex11 sites
- Buccitriton texanum11 sites
- Calyptraphorus velatus11 sites
The Paleobiology Database records 83 sites for Cyclostremiscus, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
42 references- Resilience of marine invertebrate communities during the early Cenozoic hyperthermals22
- A paleobiotic survey of Caribbean faunas from the Neogene of the Isthmus of Panama19
- Geology and Paleontology of Canal Zone and adjoining parts of Panama.12
- Faunal stability and environmental change in the middle Eocene Gulf Coastal Plain (PhD Thesis, Harvard University)11
- Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Pteropoda, Scaphopoda and Cephalopoda8
- Part 3-A. The Vitrinellidae8
- Unpublished notes on Caribbean collection of Jack and Winifred Gibson-Smith, Naturhistorisches Museum Basel7
- Miocene and Pliocene mollusks from Trinidad6
- The Molluscan Macrofauna of the Reklaw Formation, Marquez Member (Eocene: Lower Claibornian), in Texas5
- Mollusca: Shoal River Formation (Middle Miocene4
- Effects of sampling on paleoecologic and taphonomic analyses in high-diversity fossil accumulations: an example from the Eocene Gosport Sand, Alabama4
- Skwarko, 19944
Each of the 158 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. 30 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 content1
Picture of Cyclostremiscus
- Source
- Wikipedia/Commons
- Credit
- Manuel CABALLER
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
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 itVitrinellidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Pilsbry and Olsson 1945