Dentimargo
Dentimargo is a genus of sea snails, marine gastropod mollusks in the family Marginellidae, the margin snails.

Manuel CABALLER · CC BY 4.0 · 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- Sits inside
- MarginellidaePBDB
- Diet
- carnivorePBDB, for Marginellidae
- Life habit
- epifaunalPBDB, for Marginellidae
- Motility
- actively mobilePBDB, for Marginellidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 27 million years on record.
The record covers at least 27.3 Mya to 11.7 ka. No occurrence read is dated outside 33.9 Mya to 0 Mya.
42 occurrences of Dentimargo on record, most of them in the Pliocene. 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
42 occurrences- Oligocene2%
- Miocene5%
- Pliocene60%
- Pleistocene29%
- Holocene5%
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
15 formations
- Cayo Agua Formation · Bocas del Toro Group8
- Escudo de Veraguas Formation · Bocas del Toro Group7
- Caloosahatchee Formation4
- Rio Banano Formation · Limon Group3
- Acredale Formation2
- Chowan RIver Formation2
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The named rock units Dentimargo 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.
Dentimargo and its relatives
PlioceneWhere Dentimargo and its relatives were recorded in the Pliocene.
Found in the same rock
1,133 taxa- Olivella mutica13 sites
- Crassinella lunulata12 sites
- Nucula (Nucula) proxima12 sites
- Epitonium11 sites
- Anomia simplex10 sites
- Crepidula plana10 sites
- Nuculana acuta10 sites
- Parvilucina multistriata10 sites
- Turritella10 sites
- Neverita duplicatus9 sites
- Tectonatica pusilla9 sites
- Calliostoma8 sites
- Cerithium8 sites
- Crassinella8 sites
- Diodora8 sites
- Oliva (Ispidula) sayana8 sites
- Plicatula gibbosa8 sites
- Seila adamsii8 sites
- Turbonilla8 sites
- Abra aequalis7 sites
- Acteocina canaliculata7 sites
- Anadara (Larkinia) transversa7 sites
- Arcopsis adamsi7 sites
- Atilia7 sites
The Paleobiology Database records 20 sites for Dentimargo, 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
15 references- A paleobiotic survey of Caribbean faunas from the Neogene of the Isthmus of Panama17
- The Pleistocene molluscan fauna from Leisley Shell Pit 1, Hillsborough County, Florida3
- Unpublished notes on Caribbean collection of the Naturhistorisches Museum Basel3
- Late Pliocene and Early Pleistocene Mollusca from the James City and Chowan River Formations at Lee Creek Mine3
- Pliocene Mollusca of Southern Florida3
- Unpublished notes on Caribbean collection of Jack and Winifred Gibson-Smith, Naturhistorisches Museum Basel2
- The fauna and paleoecology of the Late Pleistocene marine sediments of southeastern Virginia2
- Miocene gastropods and scaphopods of the Choctawatchee Formation of Florida2
- Diversity and Paleoecology of Miocene Coral-Associated Mollusks from East Kalimantan (Indonesia)1
- Gastropod Associations as a Proxy for Seagrass Vegetation in a Tropical, Carbonate Setting (San Salvador, Bahamas)1
- Mollusca: Fort Thompson Formation (Late Pleistocene)1
- Facies and faunal assemblage changes in response to the Holocene transgression in the Lagoon of Mayotte (Comoro Archipelago, SW Indian Ocean)1
Each of the 42 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. 3 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 content1
Picture of Dentimargo
- Source
- Wikipedia/Commons
- Credit
- Manuel CABALLER
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Dentimargo 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
- Source
- Wikipedia, “Dentimargo”
- 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 itMarginellidae through timeFormations of the PlioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cossmann 1899