Epitonium (Cirsotrema) saundersi

Not Epitonium (Cirsotrema) saundersi. This is Epitonium saundersi (Tegland, 1933), a relative — both are Epitoniidae.
University of Washington Burke Museum · 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
- CirsotremaPBDB
- Diet
- carnivorePBDB, for Epitoniidae
- Life habit
- low-level epifaunalPBDB, for Epitoniidae
- Motility
- slow-movingPBDB, for Epitoniidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At most 4.3 million years on record.
Every occurrence read is dated to somewhere between 27.3 Mya and 23.04 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Epitonium (Cirsotrema) saundersi on record, most of them in the Oligocene. 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
3 occurrences- Oligocene100%
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 Epitonium (Cirsotrema) saundersi has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Epitonium (Cirsotrema) saundersi and its relatives
OligoceneWhere Epitonium (Cirsotrema) saundersi and its relatives were recorded in the Oligocene.
Found in the same rock
106 taxa- Acila (Acila) gettysburgensis3 sites
- Bruclarkia thor3 sites
- Cochlodesma bainbridgensis3 sites
- Crepidula ungana3 sites
- Cyclocardia hannai3 sites
- Ficus modesta3 sites
- Gyrineum goodspeedi3 sites
- Liracassis rex3 sites
- Macoma lorenzoensis arnoldi3 sites
- Macrocallista cathcartensis3 sites
- Neverita (Neverita) washingtonensis3 sites
- Pandora (Pandorella) vanwinkleae3 sites
- Polinices (Euspira) blakeleyensis3 sites
- Portlandia chehalisensis3 sites
- Priscofusus stewarti3 sites
- Psephaea (Miopleiona) weaveri3 sites
- Pseudoperissolax trophonoides3 sites
- Scaphander washingtonensis gordoni3 sites
- Solariella kincaidi3 sites
- Solemya (Acharax) dalli3 sites
- Thracia schencki3 sites
- Turricula mclellani3 sites
- Turritella diversilineata blakeleyensis3 sites
- Balanophyllia2 sites
The Paleobiology Database records 3 sites for Epitonium (Cirsotrema) saundersi, 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
2 references- Paleontology of the Marine Tertiary formations of Oregon and Washington2
- Megafaunal zones of the Oligocene of northwestern Washington1
Each of the 3 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1

Picture of Epitonium saundersi (Tegland, 1933)
- Source
- GBIF
- Credit
- University of Washington Burke Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Epitonium (Cirsotrema) saundersi 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 itCirsotrema through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Tegland 1933)