Zemacies

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

Zemacies

P. Marshall · 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 40 million years on record.

The record covers at least 56 Mya to 15.98 Mya. No occurrence read is dated outside 66 Mya to 11.63 Mya.

Late Cretaceous — about 0 of 28 occurrencesPaleocene — about 2 of 28 occurrencesPaleoceneEocene — about 21 of 28 occurrencesEoceneOligocene — about 3 of 28 occurrencesOligoceneMiocene — about 2 of 28 occurrencesMiocene67–65 Mya — about 0.1 occurrences65–63 Mya — about 0.2 occurrences63–61 Mya — about 0.2 occurrences61–60 Mya — about 0.2 occurrences60–58 Mya — about 0.7 occurrences58–56 Mya — about 0.7 occurrences56–54 Mya — about 0.5 occurrences54–52 Mya — about 0.5 occurrences52–50 Mya — about 0.0 occurrences48–46 Mya — about 0.2 occurrences46–44 Mya — about 0.3 occurrences44–43 Mya — about 0.3 occurrences43–41 Mya — about 0.4 occurrences41–39 Mya — about 1 occurrence39–37 Mya — about 4 occurrences37–35 Mya — about 8 occurrences35–33 Mya — about 5 occurrences28–26 Mya — about 1 occurrence26–24 Mya — about 1 occurrence24–22 Mya — about 0.5 occurrences22–20 Mya — about 0.6 occurrences20–18 Mya — about 0.4 occurrences16–14 Mya — about 0.4 occurrences14–12 Mya — about 0.4 occurrences12–11 Mya — about 0.2 occurrences56 Mya15.98 Mya67 Mya11 Mya

28 occurrences of Zemacies on record, most of them in the Eocene. 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

28 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

11 formations

Submeseta — 64.24°S, 56.65°WSubmeseta — 64.24°S, 56.65°WSubmeseta — 64.26°S, 56.62°WSubmeseta — 64.26°S, 56.66°WLa Meseta — 64.24°S, 56.65°WLa Meseta — 64.24°S, 56.66°WTapui Glauconitic Sandstone — 45.04°S, 170.76°ETapui Glauconitic Sandstone — 44.96°S, 170.65°EOtekaike Limestone — 45.79°S, 170.51°EOtekaike Limestone — 44.79°S, 170.51°EPebble Point — 38.70°S, 143.18°EWaihao Greensand — 44.78°S, 171.17°EBohio — 9.18°N, 79.88°WCaimito — 9.15°N, 79.86°WRed Bluff Tuff — 44.30°S, 176.25°EMount Brown — 44.16°S, 171.10°ECerro Dorotea — 51.58°S, 72.33°W

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The named rock units Zemacies 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.

Zemacies and its relatives

Eocene

Where Zemacies and its relatives were recorded in the Eocene.

Found in the same rock

315 taxa

The Paleobiology Database records 24 sites for Zemacies, 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 28 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 Zemacies

Credit
P. Marshall
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Zemacies was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itBorsoniidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Finlay 1926