Liracassis petrosa

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
- LiracassisPBDB
- Diet
- carnivorePBDB, for Cassidae
- Life habit
- epifaunalPBDB, for Cassidae
- Motility
- actively mobilePBDB, for Cassidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 7 million years on record.
The record covers at least 23.04 Mya to 15.98 Mya. No occurrence read is dated outside 33.9 Mya to 13.82 Mya.
16 occurrences of Liracassis petrosa on record. 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
16 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
4 formations
Loading coastlines…
The named rock units Liracassis petrosa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.
Found in the same rock
105 taxa- Cryptonatica oregonensis7 sites
- Katherinella arnoldi6 sites
- Dentalium pseudonyma4 sites
- Aturia angustata3 sites
- Macrocallista vespertina3 sites
- Phacoides3 sites
- Chione2 sites
- Conchocele bisecta2 sites
- Crenella porterensis2 sites
- Ficus modesta2 sites
- Macrocallista cathcartensis2 sites
- Mactromeris albaria2 sites
- Mursia marcusana2 sites
- Panopea generosa2 sites
- Portlandia chehalisensis2 sites
- Tellina2 sites
- Thracia (Homoeodesma) trapezoides2 sites
- Turcicula2 sites
- Turricula2 sites
- Turritella diversilineata blakeleyensis2 sites
- Acila (Acila) gettysburgensis1 site
- Acila (Truncacila) conradi1 site
- Acila (Truncacila) shumardi1 site
- Anadara (Anadara) devincta1 site
The Paleobiology Database records 12 sites for Liracassis petrosa, 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
3 references- Tertiary faunal horizons of western Washington12
- Miocene marine mollusks from the Astoria Formation in Oregon3
- Tertiary and Quaternary pectens of California1
Each of the 16 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Liracassis petrosa
- 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 of Liracassis petrosa 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 itLiracassis through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1855)