Bulbus
Bulbus is a genus of predatory sea snails, marine gastropod mollusks in the family Naticidae, the moon snails.

Leach, 1819 · CC0 · 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
- PolinicinaePBDB
- Diet
- carnivorePBDB, for Naticidae
- Life habit
- semi-infaunalPBDB, for Naticidae
- Motility
- actively mobilePBDB, for Naticidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 15 million years on record.
The record covers at least 15.98 Mya to 129 ka. No occurrence read is dated outside 23.04 Mya to 11.7 ka.
6 occurrences of Bulbus on record, most of them in the Miocene. 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
6 occurrences- Miocene50%
- Pleistocene50%
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 Bulbus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Bulbus and its relatives
MioceneWhere Bulbus and its relatives were recorded in the Miocene.
Found in the same rock
49 taxa- Ameghinomya1 site
- Anomiidae1 site
- Arca (Arca) patagonica1 site
- Austroimbricaria quemadensis1 site
- Bryozoa1 site
- Calliostoma1 site
- Calyptraea1 site
- Cancellaria1 site
- Cardium1 site
- Chaceon peruvianus1 site
- Chionopsis1 site
- Crassostrea hatcheri1 site
- Cucullaea alta1 site
- Dosinia1 site
- Echinoidea1 site
- Eopleurotoma1 site
- Flabellum1 site
- Glycymeris1 site
- Limopsis insolita1 site
- Mactra patagonica1 site
- Miomelon gracilis1 site
- Mya (Mya) truncata1 site
- Naticidae1 site
- Neptunea1 site
The Paleobiology Database records 3 sites for Bulbus, 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
5 references- Stratigraphical notes on Macoma (Bivalvia) in the southern part of the North Sea Basin and some remarks on the arrival of Pacific species2
- Mass mortality of fossil decapods within the Monte Leon Formation (early Miocene), southern Argentina: victims of Andean Volcanism?1
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions1
- Cenozoic fossil Naticidae (Mollusca: Gastropoda) in Japan1
- Molluscan paleontology, paleoecology, and North Pacific correlations of the Miocene Tachilni Formation, Alaska Peninsula, Alaska1
Each of the 6 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 content2
Picture of Bulbus
- Source
- Wikipedia/Commons
- Credit
- Leach, 1819
- Licence
- CC0
- Commercial use
- the licence allows it
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 itPolinicinae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Brown 1839