Trimusculus reticulatus
Trimusculus reticulatus is a species of small air-breathing sea snail or false limpet, a pulmonate gastropod mollusc in the family Trimusculidae, the button snails.

Shellnut · CC BY-SA 3.0 · 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
- netted button shellPBDB
- Sits inside
- TrimusculusPBDB
- Diet
- grazerPBDB, for Trimusculidae
- Life habit
- low-level epifaunalPBDB, for Trimusculidae
- Motility
- facultatively mobile, attachedPBDB, for Trimusculidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 645 thousand years on record.
The record covers at least 774 ka to 129 ka. No occurrence read is dated outside 2.58 Mya to 0 Mya.
12 occurrences of Trimusculus reticulatus 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
12 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
3 formations
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The named rock units Trimusculus reticulatus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Trimusculus reticulatus and its relatives
PleistoceneWhere Trimusculus reticulatus and its relatives were recorded in the Pleistocene.
Found in the same rock
607 taxa- Amphissa versicolor8 sites
- Antisabia panamensis8 sites
- Caecum californicum8 sites
- Cumingia californica8 sites
- Dendropoma lituella8 sites
- Epilucina californica8 sites
- Eulithidium pulloides8 sites
- Glans carpenteri8 sites
- Haliotis cracherodii8 sites
- Lottia scabra8 sites
- Vitrinella oldroydi8 sites
- Alia carinata7 sites
- Atrimitra idae7 sites
- Barleeia subtenuis7 sites
- Californiconus californicus7 sites
- Callianax biplicata7 sites
- Chlorostoma funebrale7 sites
- Crepidula adunca7 sites
- Diodora aspera7 sites
- Haliotis rufescens7 sites
- Homalopoma (Homalopoma) luridum7 sites
- Lacuna (Epheria) unifasciata7 sites
- Lirularia optabilis7 sites
- Littorina (Littorina) scutulata7 sites
The Paleobiology Database records 8 sites for Trimusculus reticulatus, 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, California7
- Late Pleistocene molluscan faunas from upper terraces of the Palos Verdes Hills, California2
- Geology and Paleontology of Palos Verdes Hills, California2
- Late Pleistocene invertebrates of the Newport Bay area, California1
Each of the 12 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 Trimusculus reticulatus
- Source
- Wikipedia/Commons
- Credit
- Shellnut
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Trimusculus reticulatus 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.
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 itTrimusculus through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Sowerby 1835)