Crepidula ungana

via iDigBio · 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
- CrepidulaPBDB
- Diet
- suspension feederPBDB, for Crepidula
- Life habit
- epifaunalPBDB, for Crepidula
- Motility
- facultatively mobile, attachedPBDB, for Crepidula
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 10 million years on record.
The record covers at least 37.71 Mya to 27.3 Mya. No occurrence read is dated outside 48.07 Mya to 23.04 Mya.
32 occurrences of Crepidula ungana 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
32 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
7 formations
- Eugene Formation20
- Blakeley Formation5
- Temblor Formation3
- Stepovak Formation1
- Rateginskaya Formation1
- San Emigdio Formation1
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The named rock units Crepidula ungana has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Crepidula ungana and its relatives
EoceneWhere Crepidula ungana and its relatives were recorded in the Eocene.
Found in the same rock
275 taxa- Mactromeris eugenensis18 sites
- Bruclarkia15 sites
- Glossaulax reclusiana13 sites
- Polinices washingtonensis13 sites
- Dentalium (Fissidentalium) laneensis12 sites
- Diplodonta parilis12 sites
- Nuculana (Saccella) washingtonensis12 sites
- Parvicardium eugenense11 sites
- Pitar (Pitar) dalli11 sites
- Solena (Eosolen) eugenensis11 sites
- Ficus modesta10 sites
- Modiolus eugenensis10 sites
- Thracia (Cetothrax) condoni10 sites
- Calyptraea diegoana9 sites
- Macrocallista9 sites
- Tellina9 sites
- Macoma (Heteromacoma) vancouverensis8 sites
- Macoma (Macoma) inquinata8 sites
- Gemmula bentsonae7 sites
- Solen sicarius7 sites
- Tellina (Moerella) lincolnensis7 sites
- Acrilla (Ferminoscala) dickersoni6 sites
- Lucinoma acutilineata6 sites
- Procerapex bentsonae6 sites
The Paleobiology Database records 31 sites for Crepidula ungana, 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
8 references- The Oligocene marine molluscan fauna of the Eugene Formation in Oregon20
- Oligocene molluscan biostratigraphy and paleontology of the Lower Part of the type Temblor Formation, California3
- Megafaunal zones of the Oligocene of northwestern Washington3
- Paleontology of the Marine Tertiary formations of Oregon and Washington2
- Biotic response to the Eocene-Oligocene Transition: Gastropod assemblages in the High-Latitude North Pacific1
- Stratigraphy and sedimentology of the Eocene Tejon Formation, western Tehachapi and San Emigdio mountains, California1
- Age and depositional environments of Tertiary rocks of Nootka Island British Columbia1
- Geology of the Alaska Peninsula-island arc and continental margin (Part 1)1
Each of the 32 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 Crepidula ungana
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCrepidula through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Dall 1908