Cochlodesma

Cochlodesma

via iDigBio · 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
PeriplomatidaePBDB
Diet
suspension feederPBDB, for Periplomatidae
Life habit
infaunalPBDB, for Periplomatidae
Motility
facultatively mobilePBDB, for Periplomatidae
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 56 million years on record.

The record covers at least 59.24 Mya to 2.58 Mya. No occurrence read is dated outside 61.66 Mya to 774 ka.

Paleocene — about 2 of 38 occurrencesPaleoceneEocene — about 12 of 38 occurrencesEoceneOligocene — about 11 of 38 occurrencesOligoceneMiocene — about 5 of 38 occurrencesMiocenePliocene — about 7 of 38 occurrencesPleistocene — about 1 of 38 occurrences63–61 Mya — about 0.4 occurrences61–59 Mya — about 0.8 occurrences59–57 Mya — about 0.6 occurrences57–54 Mya — about 2 occurrences54–52 Mya — about 2 occurrences52–50 Mya — about 2 occurrences50–48 Mya — about 2 occurrences48–46 Mya — about 0.4 occurrences46–44 Mya — about 0.3 occurrences44–42 Mya — about 0.3 occurrences42–40 Mya — about 0.1 occurrences38–36 Mya — about 2 occurrences36–34 Mya — about 2 occurrences34–31 Mya — about 0.5 occurrences31–29 Mya — about 0.5 occurrences29–27 Mya — about 0.6 occurrences27–25 Mya — about 5 occurrences25–23 Mya — about 5 occurrences23–21 Mya — about 0.0 occurrences17–15 Mya — about 1 occurrence15–13 Mya — about 2 occurrences13–10 Mya — about 1 occurrence10–8.4 Mya — about 0.5 occurrences8.4–6.3 Mya — about 0.3 occurrences6.3–4.2 Mya — about 2 occurrences4.2–2.1 Mya — about 5 occurrences2.1–0 Mya — about 0.7 occurrences59.24 Mya2.58 Mya63 Mya0 Mya

38 occurrences of Cochlodesma on record, most of them in the Eocene. 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

38 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

20 formations

Reklaw — 30.88°N, 95.38°WReklaw — 30.11°N, 97.32°WReklaw — 30.01°N, 97.26°WReklaw — 30.80°N, 96.72°WKeasey — 46.00°N, 123.26°WKeasey — 45.75°N, 123.25°WPittsburg Bluff — 45.59°N, 123.21°WPittsburg Bluff — 45.82°N, 123.18°WBlakeley — 47.58°N, 122.48°WLillo — 51.25°N, 4.28°EBreda — 51.95°N, 6.75°EWeches — 30.18°N, 97.47°WWeches — 31.00°N, 96.83°WGram — 55.31°N, 9.06°EPittsburg — 45.82°N, 123.18°WStepovak — 55.37°N, 161.36°WChowan RIver — 35.28°N, 76.65°WKap Kobenhavn — 82.38°N, 21.00°WKattendijk — 51.25°N, 4.28°ECoralline Crag — 52.75°N, 1.53°ERed Crag — 51.85°N, 1.28°ESeguin — 30.18°N, 97.47°WLincoln Creek — 46.49°N, 123.80°WDeBeque — 39.70°N, 107.60°WPysht — 48.16°N, 123.91°WTwin River — 48.17°N, 123.98°W

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The named rock units Cochlodesma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Cochlodesma and its relatives

Eocene

Where Cochlodesma and its relatives were recorded in the Eocene.

Found in the same rock

1,136 taxa

The Paleobiology Database records 33 sites for Cochlodesma, 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

16 references

Each of the 38 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. 4 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 Cochlodesma

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Cochlodesma 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.

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. Couthouy 1839