Stephopoma

Stephopoma is a genus of sea snails, marine gastropod molluscs in the family Siliquariidae, the "slit worm shells" or "slit worm snails".

No picture of Stephopoma was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Stephopoma, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
SiliquariidaePBDB
Diet
suspension feederPBDB, for Siliquariidae
Life habit
epifaunalPBDB, for Siliquariidae
Motility
stationaryPBDB, for Siliquariidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 32 million years on record.

The record covers at least 33.9 Mya to 1.63 Mya. No occurrence read is dated outside 37.71 Mya to 340 ka.

Eocene — about 1 of 9 occurrencesEoceneOligocene — about 0 of 9 occurrencesMiocene — about 7 of 9 occurrencesMiocenePliocene — about 0 of 9 occurrencesPleistocene — about 1 of 9 occurrences38–37 Mya — about 0.1 occurrences37–36 Mya — about 0.3 occurrences36–35 Mya — about 0.3 occurrences35–33 Mya — about 0.2 occurrences23–22 Mya — about 0.5 occurrences22–21 Mya — about 0.5 occurrences21–19 Mya — about 0.5 occurrences19–18 Mya — about 0.5 occurrences18–17 Mya — about 0.5 occurrences17–15 Mya — about 0.8 occurrences15–14 Mya — about 1 occurrence14–13 Mya — about 0.7 occurrences13–12 Mya — about 0.6 occurrences12–10 Mya — about 0.2 occurrences10–9.0 Mya — about 0.2 occurrences9.0–7.7 Mya — about 0.2 occurrences7.7–6.4 Mya — about 0.2 occurrences6.4–5.1 Mya — about 0.2 occurrences2.6–1.3 Mya — about 0.3 occurrences1.3–0 Mya — about 0.7 occurrences33.9 Mya1.63 Mya38.5 Mya0 Mya

9 occurrences of Stephopoma on record, most of them in the Miocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

9 occurrences

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

6 formations

Fyansford — 38.13°S, 144.28°EFyansford — 38.22°S, 145.03°EGellibrand — 38.57°S, 143.33°EMuddy Creek — 37.73°S, 142.02°EMoorabool Viaduct Sandstone — 38.07°S, 144.30°ETainui Shell Bed — 39.95°S, 174.98°EWerillup — 34.76°S, 116.72°E

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The named rock units Stephopoma 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.

Stephopoma and its relatives

Miocene

Where Stephopoma and its relatives were recorded in the Miocene.

Found in the same rock

102 taxa

The Paleobiology Database records 2 sites for Stephopoma, 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

Each of the 9 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 content0

No picture of Stephopoma was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Stephopoma, or no answer at all. This entry cannot say which.

No 3D scan of Stephopoma was found in Smithsonian Open Access and Sketchfab.

MorphoSource 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 itSiliquariidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Mörch 1860