Hemisurcula

Hemisurcula is an extinct genus of sea snails, marine gastropod mollusks in the family Clavatulidae.

Hemisurcula

via iDigBio · CC0 · via iDigBio. 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
TurridaePBDB
Diet
carnivorePBDB, for Turridae
Life habit
epifaunalPBDB, for Turridae
Motility
actively mobilePBDB, for Turridae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 20 million years on record.

The record covers at least 61.66 Mya to 41.03 Mya. No occurrence read is dated outside 66 Mya to 33.9 Mya.

Late Cretaceous — about 0 of 23 occurrencesPaleocene — about 16 of 23 occurrencesPaleoceneEocene — about 7 of 23 occurrencesEoceneOligocene — about 0 of 23 occurrences67–66 Mya — about 0.3 occurrences66–64 Mya — about 0.8 occurrences64–63 Mya — about 0.8 occurrences63–62 Mya — about 0.8 occurrences62–61 Mya — about 0.7 occurrences61–60 Mya — about 0.7 occurrences60–59 Mya — about 2 occurrences59–58 Mya — about 4 occurrences58–57 Mya — about 4 occurrences57–56 Mya — about 2 occurrences56–54 Mya — about 0.3 occurrences54–53 Mya — about 0.3 occurrences53–52 Mya — about 0.3 occurrences52–51 Mya — about 0.3 occurrences51–50 Mya — about 0.3 occurrences50–49 Mya — about 0.3 occurrences49–48 Mya — about 0.2 occurrences48–47 Mya — about 0.1 occurrences47–45 Mya — about 0.1 occurrences45–44 Mya — about 0.1 occurrences44–43 Mya — about 0.1 occurrences43–42 Mya — about 0.1 occurrences42–41 Mya — about 0.1 occurrences41–40 Mya — about 1 occurrence40–39 Mya — about 1 occurrence39–38 Mya — about 1 occurrence38–37 Mya — about 0.1 occurrences37–35 Mya — about 0.1 occurrences35–34 Mya — about 0.1 occurrences34–33 Mya — about 0.0 occurrences61.66 Mya41.03 Mya66.6 Mya33.3 Mya

23 occurrences of Hemisurcula on record, most of them in the Paleocene. 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

23 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

10 formations

Pendleton Ferry — 31.47°N, 93.57°WPendleton Ferry — 31.35°N, 93.57°WPendleton Ferry — 31.74°N, 93.40°WPendleton Ferry — 31.72°N, 93.22°WTuscahoma — 31.82°N, 87.37°WTuscahoma — 31.83°N, 87.53°WCook Mountain — 32.32°N, 89.03°WCook Mountain — 32.14°N, 89.00°WMarthaville — 31.74°N, 93.40°WMarthaville — 31.76°N, 93.09°WMoodys Branch — 31.88°N, 88.68°WMoodys Branch — 32.28°N, 90.18°WAgatdal — 70.60°N, 53.10°WMidway — 26.30°N, 99.57°WMidway — 26.26°N, 99.52°WReklaw — 30.00°N, 97.25°WNanafalia — 31.82°N, 86.62°WKincaid — 31.29°N, 96.72°W

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The named rock units Hemisurcula has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Hemisurcula and its relatives

Paleocene

Where Hemisurcula and its relatives were recorded in the Paleocene.

Found in the same rock

637 taxa

The Paleobiology Database records 12 sites for Hemisurcula, 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

10 references

Each of the 23 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 Hemisurcula

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Hemisurcula 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 itTurridae through timeFormations of the PaleoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Casey 1904