Acanthinucella punctulata
Acanthinucella punctulata, the spotted thorn drupe, is a species of predatory sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

Jerry Kirkhart · CC BY 2.0 · 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- Also called
- spotted unicornPBDB
- Sits inside
- Nucella (Acanthinucella)PBDB
- Diet
- carnivorePBDB, for Muricidae
- Life habit
- epifaunalPBDB, for Muricidae
- Motility
- actively mobilePBDB, for Muricidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At most 2.6 million years on record.
Every occurrence read is dated to somewhere between 2.58 Mya and 0 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Acanthinucella punctulata on record, most of them in the Pleistocene. 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- Pleistocene100%
- Holoceneunder 1%
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
2 formations
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The named rock units Acanthinucella punctulata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Acanthinucella punctulata and its relatives
PleistoceneWhere Acanthinucella punctulata and its relatives were recorded in the Pleistocene.
Found in the same rock
355 taxa- Crepidula adunca4 sites
- Cumingia californica4 sites
- Dendropoma lituella4 sites
- Diodora aspera4 sites
- Epilucina californica4 sites
- Fissurella volcano4 sites
- Glans carpenteri4 sites
- Graptacme semistriata4 sites
- Homalopoma (Homalopoma) luridum4 sites
- Lacuna (Epheria) unifasciata4 sites
- Leukoma staminea4 sites
- Littorina (Littorina) scutulata4 sites
- Lottia pelta4 sites
- Lottia scabra4 sites
- Mitrella tuberosa4 sites
- Nutricola tantilla4 sites
- Paciocinebrina interfossa4 sites
- Plesiocystiscus jewetti4 sites
- Tenaturris variegata4 sites
- Acmaea mitra3 sites
- Actonia compacta3 sites
- Alvinia purpurea3 sites
- Amphissa versicolor3 sites
- Amphithalamus inclusus3 sites
The Paleobiology Database records 4 sites for Acanthinucella punctulata, 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
4 references- Geology of San Nicolas Island, California3
- Geology and Paleontology of Palos Verdes Hills, California1
- An unreported exposure of the San Pedro Pleistocene1
- The Paleontology and Stratigraphy of the Marine Pliocene and Pleistocene of San Pedro, California1
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 Acanthinucella punctulata
- Source
- Wikipedia/Commons
- Credit
- Jerry Kirkhart
- Licence
- CC BY 2.0
- Commercial use
- the licence allows it
No 3D scan of Acanthinucella punctulata was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
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 itNucella (Acanthinucella) through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Sowerby I 1835)