Microdrillia trina
Microdrillia trina is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.

Credit:MNHN - Chambart C. - 2016 Project:RECOLNAT · CC BY 4.0 · 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- Sits inside
- MicrodrilliaPBDB
- Diet
- carnivorePBDB, for Conoidea
- Life habit
- epifaunalPBDB, for Conoidea
- Motility
- actively mobilePBDB, for Conoidea
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 12 million years on record.
The record covers at least 15.98 Mya to 3.6 Mya. No occurrence read is dated outside 23.04 Mya to 2.58 Mya.
18 occurrences of Microdrillia trina on record, most of them in the Miocene. 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
18 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
5 formations
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The named rock units Microdrillia trina 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.
Microdrillia trina and its relatives
MioceneWhere Microdrillia trina and its relatives were recorded in the Miocene.
Found in the same rock
336 taxa- Cadulus (Platyschides)12 sites
- Callocardia (Agriopoma) gatunensis12 sites
- Bellucina actinus11 sites
- Varicorbula disparilis10 sites
- Gouldia costaricensis9 sites
- Lirophora (Panchione) mactropsis9 sites
- Oliva gatunensis9 sites
- Psammacoma gatunensis9 sites
- Stigmaulax guppiana9 sites
- Volvarina leander9 sites
- Agladrillia (Agladrillia) enneacyma8 sites
- Anadara (Rasia) dariensis dariensis8 sites
- Antillophos candeanus8 sites
- Caryocorbula oropendula stena8 sites
- Conus molis8 sites
- Gadilopsis8 sites
- Kurtziella (Kurtziella) pagella8 sites
- Metula gabbi8 sites
- Polystira8 sites
- Antillophos (Rhipophos) metuloides7 sites
- Dolostoma anorhepes7 sites
- Miraclathurella eucharis7 sites
- Nassarius (Nanarius) parapristus7 sites
- Naticarius7 sites
The Paleobiology Database records 13 sites for Microdrillia trina, 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- Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (gastropods: Eulimidae, Marginellidae to Helminthoglyptidae).16
- Unpublished notes on Caribbean collection of Jack and Winifred Gibson-Smith, Naturhistorisches Museum Basel1
- Miocene gastropods and scaphopods from Trinidad, British West Indies1
Each of the 18 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 Microdrillia trina
- Source
- Wikidata/Commons
- Credit
- Credit:MNHN - Chambart C. - 2016 Project:RECOLNAT
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Microdrillia trina 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 itMicrodrillia through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Mansfield 1925