Acteocina harpa

Dall, 1871 · CC0 · via Wikidata/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
- harp baby-bubblePBDB
- Sits inside
- ActeocinaPBDB
- Diet
- carnivorePBDB, for Acteocina
- Life habit
- semi-infaunalPBDB, for Acteocina
- Motility
- actively mobilePBDB, for Acteocina
- 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.
20 occurrences of Acteocina harpa 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
20 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
6 formations
- Palos Verdes Sand Formation4
- Timms Point Silt Formation3
- Lomita Marl Formation3
- San Pedro Sand Formation3
- Unnamed Formation2
- Bay Point Formation1
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The named rock units Acteocina harpa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Acteocina harpa and its relatives
PleistoceneWhere Acteocina harpa and its relatives were recorded in the Pleistocene.
Found in the same rock
907 taxa- Callianax biplicata15 sites
- Californiconus californicus13 sites
- Epilucina californica13 sites
- Mitrella tuberosa13 sites
- Caesia perpinguis12 sites
- Homalopoma (Homalopoma) luridum12 sites
- Littorina (Littorina) scutulata12 sites
- Thylacodes squamigerus12 sites
- Acteocina culcitella11 sites
- Caesia fossatus11 sites
- Calliostoma canaliculatum11 sites
- Leptopecten latiauratus11 sites
- Leukoma staminea11 sites
- Caecum crebricinctum10 sites
- Crepidula nummaria10 sites
- Cryptomya californica10 sites
- Cumingia californica10 sites
- Dallocardia quadragenarium10 sites
- Dentalium neohexagonum10 sites
- Hima cooperi10 sites
- Nutricola tantilla10 sites
- Turritella cooperi10 sites
- Caecum californicum9 sites
- Chlorostoma funebrale9 sites
The Paleobiology Database records 16 sites for Acteocina harpa, 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
13 references- The cool-water Timms Point Pleistocene horizon at San Pedro, California4
- The Paleontology and Stratigraphy of the Marine Pliocene and Pleistocene of San Pedro, California4
- Geology of San Nicolas Island, California2
- Late Pleistocene molluscan faunas from upper terraces of the Palos Verdes Hills, California1
- Pleistocene mollusks from Tecolote Creek, San Diego, California1
- Late Pleistocene invertebrates of the Newport Bay area, California1
- Pleistocene molluscan notes. I. The Bay Point Formation at its type locality1
- Paleoecologic molluscan geography of the Californian Pleistocene1
- Upper Pleistocene Mollusca from Potrero Canyon, Pacific Palisades, California1
- The paleontology of the Pleistocene molluscan fauna of the Newport Bay area, California1
- Geologic Application of Biometrical Analysis of Molluscan Assemblages1
- Report on Pleistocene Molluscan Fauna at Capistrano Beach, Orange County, Calif1
Each of the 20 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. 1 further reference is not listed. 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 Acteocina harpa
- Source
- Wikidata/Commons
- Credit
- Dall, 1871
- Licence
- CC0
- 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 itActeocina through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Dall 1871)