Opalia borealis
No picture of Opalia borealis was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Opalia borealis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Also called
- boreal wentletrapPBDB
- Sits inside
- OpaliaPBDB
- Diet
- carnivorePBDB, for Epitoniidae
- Life habit
- low-level epifaunalPBDB, for Epitoniidae
- Motility
- slow-movingPBDB, for Epitoniidae
- 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 0 Mya.
24 occurrences of Opalia borealis 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
24 occurrences- Pliocene12%
- Pleistocene88%
- 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
10 formations
- Lomita Marl Formation4
- Palos Verdes Sand Formation3
- Unnamed Formation2
- Fernando Formation1
- San Pedro Sand Formation1
- Palos Verdes Formation1
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The named rock units Opalia borealis 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.
Opalia borealis and its relatives
PleistoceneWhere Opalia borealis and its relatives were recorded in the Pleistocene.
Found in the same rock
1,126 taxa- Thylacodes squamigerus15 sites
- Californiconus californicus14 sites
- Hiatella arctica14 sites
- Callianax biplicata13 sites
- Epilucina californica13 sites
- Glycymeris septentrionalis13 sites
- Mitrella tuberosa13 sites
- Nutricola tantilla13 sites
- Homalopoma (Homalopoma) luridum12 sites
- Leukoma staminea12 sites
- Littorina (Littorina) scutulata12 sites
- Pododesmus (Monia) macrochisma12 sites
- Caesia fossatus11 sites
- Chlorostoma funebrale11 sites
- Crepidula adunca11 sites
- Crepidula nummaria11 sites
- Diodora aspera11 sites
- Fissurella volcano11 sites
- Glans carpenteri11 sites
- Lottia insessa11 sites
- Acmaea mitra10 sites
- Alia carinata10 sites
- Atrimitra idae10 sites
- Caesia perpinguis10 sites
The Paleobiology Database records 23 sites for Opalia borealis, 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
18 references- The family Epitoniidae (Mollusca: Gastropoda) in the northeastern Pacific4
- Geology of San Nicolas Island, California2
- Late Pleistocene invertebrates of the Newport Bay area, California2
- Late Pleistocene faunas from the northwestern coast of Baja California, Mexico2
- A Neogene section northeastern San Clemente Island, California1
- A Late Pliocene macrofossil fauna of Newport Beach, Orange County, California1
- Late Pleistocene Invertebrates from Punta Cabras, Baja California, Mexico1
- Pleistocene invertebrates from Punta Baja, Baja California, Mexico1
- Paleoecologic molluscan geography of the Californian Pleistocene1
- Late Pleistocene megafauna of Cayucos, California, and its zoogeographic significance1
- Pleistocene invertebrates from Punta China, Baja California, Mexico, with remarks on the composition of the Pacific coast Quaternary faunas1
- Geologic Application of Biometrical Analysis of Molluscan Assemblages1
Each of the 24 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. 6 further references are 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 content0
No picture of Opalia borealis was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Opalia borealis, or no answer at all. This entry cannot say which.
No 3D scan of Opalia borealis 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itOpalia through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gould 1852)