Asthenotoma

Asthenotoma is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae.

Asthenotoma

Ph. Dautzenberg · Public Domain · 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
BorsoniidaePBDB
Diet
carnivorePBDB, for Conoidea
Life habit
epifaunalPBDB, for Conoidea
Motility
actively mobilePBDB, for Conoidea
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 37 million years on record.

The record covers at least 41.03 Mya to 3.6 Mya. No occurrence read is dated outside 48.07 Mya to 2.58 Mya.

Eocene — about 42 of 127 occurrencesEoceneOligocene — about 1 of 127 occurrencesOligoceneMiocene — about 77 of 127 occurrencesMiocenePliocene — about 7 of 127 occurrencesPleistocene — about 0 of 127 occurrences49–47 Mya — about 0.8 occurrences47–46 Mya — about 2 occurrences46–44 Mya — about 2 occurrences44–43 Mya — about 2 occurrences43–41 Mya — about 2 occurrences41–40 Mya — about 10 occurrences40–38 Mya — about 11 occurrences38–36 Mya — about 5 occurrences36–35 Mya — about 5 occurrences35–33 Mya — about 3 occurrences28–27 Mya — about 0.1 occurrences27–25 Mya — about 0.4 occurrences25–24 Mya — about 0.4 occurrences24–22 Mya — about 2 occurrences22–21 Mya — about 3 occurrences21–19 Mya — about 4 occurrences19–17 Mya — about 4 occurrences17–16 Mya — about 5 occurrences16–14 Mya — about 17 occurrences14–13 Mya — about 16 occurrences13–11 Mya — about 12 occurrences11–9.6 Mya — about 4 occurrences9.6–8.0 Mya — about 4 occurrences8.0–6.4 Mya — about 3 occurrences6.4–4.8 Mya — about 2 occurrences4.8–3.2 Mya — about 3 occurrences3.2–1.7 Mya — about 3 occurrences41.03 Mya3.6 Mya49 Mya1.7 Mya

127 occurrences of Asthenotoma 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

127 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

22 formations

Barton Clay — 51.02°N, 1.32°WBarton Clay — 50.74°N, 1.69°WBarton Beds — 51.28°N, 0.63°WBarton Beds — 50.78°N, 1.73°WBarton Beds — 50.74°N, 1.69°WSelsey — 51.02°N, 1.32°WSelsey — 50.73°N, 0.78°WBerada — 51.10°N, 5.80°ECook Mountain — 30.90°N, 96.39°WCook Mountain — 31.35°N, 93.65°WCook Mountain — 31.20°N, 95.73°WCook Mountain — 30.63°N, 96.52°WBreda — 51.95°N, 6.75°EYazoo — 32.47°N, 90.29°WYazoo — 31.63°N, 91.82°WLillo — 51.27°N, 4.30°EMekran — 25.33°N, 63.33°EMekran — 25.40°N, 63.32°ELisbon — 31.53°N, 87.50°WLisbon — 31.82°N, 88.24°WWerder — 52.98°N, 9.06°ETermofourà — 45.05°N, 7.80°EMoodys Branch — 31.92°N, 91.92°WSables a Nummulites variolarius — 49.25°N, 2.50°EQuilon Limestone — 8.87°N, 76.59°EGaj — 24.87°N, 67.05°ERembang — 7.49°S, 110.00°ENanggulan — 7.73°S, 110.18°ECoralline Crag — 52.08°N, 1.53°EGram — 55.28°N, 9.00°EBaldissero — 45.02°N, 7.71°EYegua — 30.24°N, 96.99°W

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The named rock units Asthenotoma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 65 occurrences have no formation on record, which is common for older literature.

Asthenotoma and its relatives

Miocene

Where Asthenotoma and its relatives were recorded in the Miocene.

Found in the same rock

1,269 taxa

The Paleobiology Database records 70 sites for Asthenotoma, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

26 references

Each of the 127 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. 14 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 Asthenotoma

Credit
Ph. Dautzenberg
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itBorsoniidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Harris and Burrows 1891