Crassispira seminflata

Not Crassispira seminflata. This is Crassispira semiinflata (U.S.Grant & Gale, 1931), a relative — both are Pseudomelatomidae.
Natural History Museum Rotterdam · CC BY 4.0 · 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
- CrassispiraPBDB
- Diet
- carnivorePBDB, for Conoidea
- Life habit
- epifaunalPBDB, for Conoidea
- Motility
- actively mobilePBDB, for Conoidea
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 2.4 million years on record.
The record covers at least 2.58 Mya to 129 ka. No occurrence read is dated outside 3.6 Mya to 11.7 ka.
6 occurrences of Crassispira seminflata on record. 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
6 occurrences- Pliocene50%
- Pleistocene50%
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
4 formations
Loading coastlines…
The named rock units Crassispira seminflata has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Found in the same rock
628 taxa- Admete gracilior5 sites
- Thylacodes squamigerus5 sites
- Turritella cooperi5 sites
- Acteocina culcitella4 sites
- Californiconus californicus4 sites
- Dallocardia quadragenarium4 sites
- Dosinia ponderosa4 sites
- Glossaulax reclusiana4 sites
- Here excavata4 sites
- Kelletia kelletii4 sites
- Lirobittium rugatum4 sites
- Megastraea undosa4 sites
- Acteocina harpa3 sites
- Actonia compacta3 sites
- Amiantis callosa3 sites
- Antalis pretiosa3 sites
- Antiplanes catalinae3 sites
- Atrimitra catalinae3 sites
- Caecum crebricinctum3 sites
- Caesia fossatus3 sites
- Caesia perpinguis3 sites
- Callianax baetica3 sites
- Callianax biplicata3 sites
- Calliostoma canaliculatum3 sites
The Paleobiology Database records 6 sites for Crassispira seminflata, 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
5 references- Geology of southeastern Ventura basin, Los Angeles County, California2
- New information on molluscan paleontology and depositional environments of the Upper Pliocene Pico Formation, Valencia area, Los Angeles County, southern California1
- Late Pleistocene invertebrates of the Newport Bay area, California1
- Paleoecologic molluscan geography of the Californian Pleistocene1
- Geologic Application of Biometrical Analysis of Molluscan Assemblages1
Each of the 6 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 Crassispira semiinflata (U.S.Grant & Gale, 1931)
- Source
- GBIF
- Credit
- Natural History Museum Rotterdam
- 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCrassispira through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Grant, IV and Gale 1931)