Exechestoma

Exechestoma

via iDigBio · CC BY · 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
PotamidinaePBDB
Diet
grazerPBDB, for Potamididae
Life habit
epifaunalPBDB, for Potamididae
Motility
actively mobilePBDB, for Potamididae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 7.9 million years on record.

The record covers at least 56 Mya to 48.07 Mya. No occurrence read is dated outside 59.24 Mya to 33.9 Mya.

Paleocene — about 1 of 3 occurrencesPaleoceneEocene — about 2 of 3 occurrencesEoceneOligocene — about 0 of 3 occurrences60–59 Mya — about 0.1 occurrences59–58 Mya — about 0.3 occurrences58–57 Mya — about 0.3 occurrences57–56 Mya — about 0.3 occurrences56–55 Mya — about 0.1 occurrences55–54 Mya — about 0.0 occurrences54–54 Mya — about 0.0 occurrences54–53 Mya — about 0.0 occurrences53–52 Mya — about 0.0 occurrences52–51 Mya — about 0.0 occurrences51–50 Mya — about 0.0 occurrences50–49 Mya — about 0.0 occurrences49–48 Mya — about 0.0 occurrences48–47 Mya — about 0.1 occurrences47–47 Mya — about 0.2 occurrences47–46 Mya — about 0.2 occurrences46–45 Mya — about 0.2 occurrences45–44 Mya — about 0.2 occurrences44–43 Mya — about 0.2 occurrences43–42 Mya — about 0.2 occurrences42–41 Mya — about 0.2 occurrences41–40 Mya — about 0.1 occurrences40–40 Mya — about 0.0 occurrences40–39 Mya — about 0.0 occurrences39–38 Mya — about 0.0 occurrences38–37 Mya — about 0.0 occurrences37–36 Mya — about 0.0 occurrences36–35 Mya — about 0.0 occurrences35–34 Mya — about 0.0 occurrences34–33 Mya — about 0.0 occurrences56 Mya48.07 Mya59.7 Mya33.4 Mya

3 occurrences of Exechestoma 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

3 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

3 formations

Babica Beds — 49.92°N, 21.90°EAmeke — 6.83°N, 7.08°EAmeki — 5.00°N, 7.50°E

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

Exechestoma and its relatives

Eocene

Where Exechestoma and its relatives were recorded in the Eocene.

Found in the same rock

154 taxa

The Paleobiology Database records 3 sites for Exechestoma, 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

3 references

Each of the 3 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 Exechestoma

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Exechestoma 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPotamidinae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cossmann 1899