Bittiolum varium
Bittiolum varium, common name the grass cerith, is a species of sea snail, a marine gastropod mollusk in the family Cerithiidae.

Smithsonian Environmental Research Center · CC BY 2.0 · 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
- BittiolumPBDB
- Diet
- grazerPBDB, for Cerithiidae
- Life habit
- epifaunalPBDB, for Cerithiidae
- Motility
- actively mobilePBDB, for Cerithiidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 2.5 million years on record.
The record covers at least 2.58 Mya to 11.7 ka. No occurrence read is dated outside 3.6 Mya to 0 Mya.
11 occurrences of Bittiolum varium 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
11 occurrences- Pliocene9%
- Pleistocene73%
- Holocene18%
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
7 formations
- Caloosahatchee Formation2
- Fort Thompson Formation2
- Bermont Formation1
- New Orleans Barrier Trend Formation1
- Mount Hope Formation1
- Mare Formation1
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The named rock units Bittiolum varium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Bittiolum varium and its relatives
PleistoceneWhere Bittiolum varium and its relatives were recorded in the Pleistocene.
Found in the same rock
521 taxa- Chione cancellata7 sites
- Diodora cayenensis7 sites
- Nassarius vibex7 sites
- Nuculana acuta7 sites
- Acteocina canaliculata6 sites
- Anadara (Larkinia) transversa6 sites
- Anodontia alba6 sites
- Anomia simplex6 sites
- Arcinella cornuta6 sites
- Crepidula plana6 sites
- Dentalium6 sites
- Dinocardium robustum6 sites
- Mercenaria campechiensis6 sites
- Mulinia lateralis6 sites
- Neoterebra dislocata6 sites
- Oliva (Ispidula) sayana6 sites
- Olivella mutica6 sites
- Parvilucina multistriata6 sites
- Plicatula gibbosa6 sites
- Strombus alatus6 sites
- Tectonatica pusilla6 sites
- Timoclea grus6 sites
- Abra aequalis5 sites
- Arcopsis adamsi5 sites
The Paleobiology Database records 7 sites for Bittiolum varium, 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
8 references- Neogene Biostratigraphy of the Charlotte Harbor Area in Southwestern Florida3
- Taphonomy of the Late Pleistocene marine molluscan assemblages from Uruguay2
- Unpublished notes on Caribbean collection of Jack and Winifred Gibson-Smith, Naturhistorisches Museum Basel1
- Mollusca: Fort Thompson Formation (Late Pleistocene)1
- The Pleistocene molluscan fauna from Leisley Shell Pit 1, Hillsborough County, Florida1
- Stratigraphy of newly exposed Quaternary sediments, eastern Orleans Parish, Louisiana1
- Stratigraphy of newly exposed Quaternary seduments, eastern Orleans Parish, Louisiana1
- Two collections of Pleistocene fossils from the Isthmus of Panama1
Each of the 11 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 Bittiolum varium
- Source
- Wikipedia/Commons
- Credit
- Smithsonian Environmental Research Center
- Licence
- CC BY 2.0
- Commercial use
- the licence allows it
No 3D scan of Bittiolum varium 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 itBittiolum through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Pfeiffer 1840)